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  • 101.
    Christiernin-Gustafsson, Linn
    et al.
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Martin, Anneli
    University West, Department of Social and Behavioural Studies, Division for Educational Science and Languages.
    A multi-Layered aesthetical web-portal interface for governmental integration issues2010In: Proceedings of the Workshop on Advanced Visual Interfaces AVI 2010, Rome, 2010, p. 341-344Conference paper (Refereed)
    Abstract [en]

    The County Administrative Board, a governmental authority in The West Region of Sweden, has in collaboration with the local Counties asked us for advice in presenting information in an official and simple way on the web for the foreign person or refugee, just arrived in Sweden. Administrator officers and social workers are taking part in their introduction. In this paper, we describe our investigation and study in how to present a web design for a "newcomer" in Sweden through a multi-Layered design concept, a kind of design which will interact with each person's needs. In this multipurpose concept and portal, it has been important to consider aesthetical values, layout and graphic design. It has also been important to design a layout that provides different users with different contents. Copyright © 2010 ACM.

  • 102.
    Christoffersson, Tobias
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Stojanoski, Oliver
    University West, School of Business, Economics and IT, Divison of Informatics.
    Studenters syn på studierna inom högre utbildning under en rådande pandemi (Covid-19): baserat på studenters upplevda påverkan av undervisningsformer2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study aims to examine students' perceptions of the enforced transition from campus to distance learning as a result of the Covid-19 pandemic. The focal interest of the study is to investigate how students were affected by the transition and how they experience the current situation.

    Students in higher education who study at a college or university in Sweden are expected to be better prepared for distance education than those who go to upper secondary school, as they are older and have more experience with a broader knowledge base that has been built up over the years. There are three different opportunities to conduct distance education asynchronous, synchronous and hybrid forms of teaching. There are disagreements in previous researches undergone about which of these three teaching methods is most effective. The asynchronous and synchronous teaching methods are both considered advantageous for the students. Researchers also claim that a hybrid combination is seen as functional for the students as it highlights both parts of asynchronous and synchronous teaching.

    Previous researches that have been reviewed have mainly consisted of large-scale quantitative surveys that focused on statistics. It aroused an interest to examine students' experiences and feelings in order to get an overall picture of their thoughts about the transition. A qualitative approach with the help of semi-structured interviews has been used to answer the study's questions. In the study, The Transactional Distance theory has been used in the presentation of the questions and the interview guide as well as to analyze the results. The theory consists of three variables, dialogue, structure and independence, which have also been used to categorize and identify students' experiences in relation to distance education.

    Ten students from University West, from five different programs, participated in the study. Each program was represented by a male and a female respondent who have studied before and throughout the transition from campus to distance learning. The results of the study indicate that the students experienced the structure of the courses as decisive for their own independence. The dialogue between student and teacher were considered advantageous, when the lectures were conducted on distance through Zoom, as the opportunity to ask questions to the teacher directly was considered more effective than via email. The student’s motivation is affected by the degree of social interaction the students experienced as accessible. Where students with a higher degree of interaction with others showed increased motivation to complete their studies. The Covid-19 pandemic was the main reason as to why students experienced reduced motivation, as student interaction was restricted due to the pandemic.

  • 103.
    Clementz, Emil
    et al.
    University West, School of Business, Economics and IT.
    Minardi, Christian
    University West, School of Business, Economics and IT.
    Designprinciper för e-legitimering inom högre utbildning med fokus på social hållbarhet: En Action Design Research studie2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Electronic identity management has become an increasingly important part of public administration. Thanks to the Agency for Digital Government (DIGG) in Sweden, higher education institutions have now begun their journey towards federated identity management with e-legitimation. This study attempts to find design principles for the development of socially sustainable integrations of e-identification solutions for procuring authorities. Using Action Design Research (ADR), the e-identification option Freja was integrated to identify challenges in social sustainability, known as problem classes. The integration was carried out for the University West as part of the work on implementing various e-identification options. Previous design principles from literature, documentation from authorities and documentation from identity providers formed the basis for the development of a prototype, which was further adapted for social sustainability within the context of higher education. Acceptance criteria for the development were collected through interviews with the organization and analysis of data using theoretical thematic analysis. Lessons were made on how identified problems can be addressed through system development, which were later formulated as design principles. The study was conducted over a time period of nine weeks and resulted in a working integration of Freja for the University West's password reset. In addition, eleven design principles and ananalytical framework for social sustainability were formed. The work was carried out over five cycles with Agile development and gradual refinement of design principles.

  • 104.
    Collin, Hans
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Maslovski, Andrej
    University West, School of Business, Economics and IT, Divison of Informatics.
    Mobilapplikation som överfallslarm: vid hot och våld inom offentliga verksamheter2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Introduction: The tragic incident that occurred at the school Kronan in Trollhättan ended up with four people being killed intentionally. In situations like this it goes quickly and it is therefore important to quickly inform the environment to minimize the risk that many will be injured. The purpose of the study is to investigate whether a mobile application can be useful as a panic alarm in the public sector.

    Method: The approach has been to carry out a qualitative study to gain knowledge about if a mobile application is useful as a panic alarm. Data collection was performed through interviews and focus group interviews. In order to measure the user experience of using a mobile application as panic alarm we developed a prototype that the respondents got to test. Perceived usefulness is influenced by perceived ease of use; therefore we placed great emphasis on designing a usable interface. To develop a usable user interface we used Nielsen's ten rules; later the user interface was evaluated with the respondents.Theory: In order to answer the research question we have used the Technology Acceptance Model 2. The model makes it possible to measure how a mobile application will be accepted and used by two basic factors, perceived usefulness and perceived ease of use. Nielsen’s heuristic consists of ten rules, which have been applied to design and evaluate the user interface.

    Result: The result presents the empirical data collection that has been thematised based on TAM2. It appeared that a mobile application as panic alarm is considered useful. The application is considered useful as an information channel to alert staff at the workplace in an emergency situation, but also so the co-workers can quickly get help from each other. It appeared that the safety and security at the workplace increases with such an application. Conclusion: Staff in the public sector believes that a mobile application is useful as a panic alarm when threat and violence occur. The application is particularly useful as an information channel to quickly distribute information with a SMS to staff at the workplace, but also so co-workers can be able to help each other in an emergency situation. The prototype was perceived as user friendly; it was clear how the prototype worked and the functions were easy to use. The prototype fulfills a need that exists today because there are no similar alarms used in the public sector today.

  • 105.
    Crusner, Maria
    University West, School of Business, Economics and IT, Division of Media and Design.
    Funktioner för förbättrad träning: En kvalitativ studie om Quantified-selfers uppfattning och erfarenheter kring beteendeförändring i Runkeeper2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to find out how fitness applications should be designed to help Quantified-selfers to change a behavior. This was investigated by interviewing users of the fitness-tracking application Runkeeper, and focused on users experiences, how they use it and in what way their behavior has changed. The study showed that the application had overall improved the users training behavior, but it differed in the way in which it had succeeded. The app was seen as a positive resource that allowed the users to follow and compare their results, which led to that they progressed in their training. What features the users used, which they did not use and which they wanted was individually and depended on the users desired outcome of their training. Finally, it is suggested how future wearable tech regarding fitness can be designed to help Quantified-selfers further to change a behavior.

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  • 106.
    Cukur, Adnan
    University West, Department of Economics and IT, Divison of Informatics.
    Utvärdering av SF.se utifrån användbarhetsaspekter: En användarundersökning av SF.se2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    More and more businesses choose to be available online. A website with high usability can lead a way to endless possibilities. A loss of a market that consists of six million potential customers is what awaits businesses that choose to not sell their products online. This is why usability online is important. Usability can be measured with five attributes, learnability, efficiency, memorability, errors and satisfaction. To make sure that these attributes are as high as possible, a developer can make use of techniques that improves a sites usability. A website with high usability will lead to an increase of the websites sales.

    This studys' purpose has been to research about how the users of SF.se experience the usability on the website. An interview has been conducted with five respondents that have answered questions about their background, they have done simple tasks on the website and they have been asked general questions about the websites usability. The data retrieved from the research was analyzed and a conclusion was drawn. The research showed that the website had a high degree of satisfaction, but a couple of usability problems that affect the users' efficiency. The usability can be improved particularly on the part of the website that handles upcoming movies. The information about upcoming movies was insufficient and difficult to find, this lowers the users' efficiency and reflects upon the whole usability aspect of the website.

  • 107.
    Dahir, Mona
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Lundberg, Emanuel
    University West, School of Business, Economics and IT, Divison of Informatics.
    Designprinciper för utveckling av utvärderingssystem: Kvalitetssäkring av utvärderingsprocessen för arbetsförlagd träning i Virtual Reality2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study is to examine and formalize important design principles in the development of an evaluation system in the context of assessing the quality and efficiency in virtual reality training. This study is based on previous research and theories in evaluation systems and training programs for work-based learning. Qualitative data has been collected through several semi-structured interviews with key individuals who participated in a VRtraining project at the Swedish railway company SJ. This study has applied an action design research approach through iterative cycles to build, test and assess evaluation systems in close collaboration with participants from SJ. The results that emerged from this study were six different design principles that have been developed through an analysis based on the case study as well as criteria for evaluation systems, training programs and evaluation. Lastly, a discussion about the methods of the various principles has been conducted in order to ensure the organization’s evaluation process.

  • 108.
    Dahl, Emma
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Litavszky, Tamas
    University West, School of Business, Economics and IT, Divison of Informatics.
    Environmental Storytelling och Affordances: En kvalitativ studie av hur environmental storytelling kan påverkas av användning av affordances2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to investigate how the presentation and usage of affordances can affect the players understanding and experience of in-game environmental storytelling. We created a realistic digital game environment with a highly intelligible story that were presented in two different variations, one with obviously marked affordances and one with no markings at all. With these two scenes we performed an experiment with eight participants, four for every scene. After the experiment followed an interview where we got to learn about how deeply the participants interpreted and understood the story in the scene and how affordances might have had affected it. The study showed that different ways of implementing affordances in digital games has a noticeable impact on how environmental storytelling is experienced by the player. This is based on discussions about what the participants told us about their understanding of the story and their overall experience with the game environment. Our conclusion is that the way affordances are implemented and presented in a digital game has an impact on the players experience and understanding of in-game environmental storytelling.

  • 109.
    Dahlgren, Niklas
    et al.
    University West, School of Business, Economics and IT.
    Käkelä, Victor
    University West, School of Business, Economics and IT.
    Den hybrida arbetsplatsen, det nya normala inom IT-branschen?: En kvalitativ studie om nya arbetsförhållanden för utvecklare2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The hybrid work approach, through the combination of office work and remote work has emerged as the new normal way of working with the aim of offering employees a more flexible work environment. The hybrid solution has created new working conditions as employees to a greater extent can choose whether they want to perform their tasks remotely or at the office. This has placed higher demands on communication within companies to promote collaboration between employees working in different locations. The purpose of the study is to investigate how developers in the IT industry experience working according to the hybrid work approach, how the approach affects developers working ability and to explore the challenges and opportunities that come with working according to this approach.

    The study has adopted a qualitative approach by using semi-structured interviews as a data collection method. The interviews have been conducted with individuals holding roles as adeveloper in the IT industry where all respondents have worked according to the hybrid work approach at some point during their work experience. Using the Job Demands-Resource model as a theoretical framework, the model has been used to examine the factors that affect employee motivation in the hybrid work approach.

    The study's results indicate that the majority of developers are satisfied with the hybrid work approach as it has given them greater flexibility in choosing their workplace. Developers perceive that the approach has provided them with greater freedom to adapt their work schedule according to their needs, which has contributed to increased productivity and better work-life balance. The study also shows that challenges remain in maintaining communication and collaboration between colleagues in the hybrid work approach, which has placed higher demands on the implementation of technical solutions to facilitate better communication. Finally, the study indicates that the hybrid work approach is here to stay and that it is the new normal for future ways of working.

  • 110.
    Dahlman, Victor
    et al.
    University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Persson, Ludwig
    University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Digitalisering av ett ticketsystem för restaurangbranschen2021Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    The project set out to create and configure a system that could be connected to an existing ticket-system within the restaurant businesses. A problem within the restaurant business that can be solved with the help of digitalization is the usage and cost of physical tickets. With this system this problem can be remedied.

    By connecting the ticket-machine with a Raspberry Pi via a serial-link the data that was originally meant to be sent to the ticket printer can now be picked up by the Raspberry Pi and be processed within the device. The data that is received by the Raspberry Pi is converted via a program made with Python3 and then stored in a MySQL-database. A webserver that is running on the Raspberry Pi can display the now digitalized ticket on any web browser capable machine, for example an iPad.

    There is now a prototype that can receive, process, and store the data as well as display it via a web-based interface, on any capable device. The prototype was tested in a production environment and performed after the demands that had been set. The project was completed and both the restaurant personnel as well as the developers were satisfied, and the project was considered a success.

  • 111.
    Danielsson, Kristoffer
    et al.
    University West, School of Business, Economics and IT, Division of Media and Design.
    Mäki, Albin
    University West, School of Business, Economics and IT, Division of Media and Design.
    Hur påverkar eWOM kryptovärlden?: En studie om konsumenters beteende gällande kryptografiska valutor2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    It is more relevant today than ever before to speak about cryptocurrencies sinceBitcoin and other alternative cryptocurrencies break their own records time and time again. Large corporations like Tesla and Mastercard both show an interest in integrating different cryptocurrencies’ use-cases and invest in them directly, which thus legitimizes them on a whole new level. In today’s climate surrounding cryptocurrencies there is an incredible amount of information being shared daily, consisting of news, restrictions, updates and much more. All of this happens largely on digital platforms and navigating this enormous amount of information that is shared on the internet can become a challenge.In this paper we seek to investigate how Electronic Word-of-Mouth (eWOM) affects individuals within the cryptocurrency market. To gain perspective on this we have conducted a quantitative survey and several qualitative interviews, as well as weighed the given answers against existing scientific literature. Our results show that the volume of opinions matters more to users than the actual opinions in of themselves. We can see that various users utilize different platforms, often to fill different purposes. The users primarily focus on several specific criteria to judge the trustworthiness of a source. These are mainly: a source with a proven track record, a highly regarded source or one with experience, information backed by proof and fact, and well-presented information. When it comes to negative versus positive sentiment, we did not reach consistent results, neither regarding which sentiment affects more in general, nor based on previous experience. This is an area that could benefit from further research.

  • 112.
    Darwich, Jamal
    University West, Department of Economics and IT.
    Comparative study of Mobile IPv4 and Mobile IPv62011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis has compared the Mobile IPv4 and Mobile IPv6 to find out which of them performs better when it comes to send datagram from the correspondent node to the mobile node. The tests that were made to measure performance were latency, TCP/UDP throughput, loss and delay, as well as time measurement for connectivity loss for the mobile node while roaming. The tests were done using Cisco equipments and Microsoft Windows 7 Professional OS. Due to the hardware and software used, the route of datagram was the same in both scenarios since Cisco routers and Microsoft Windows 7 OS does not support route optimization for Mobile IPv6. The results showed that Mobile IPv4 performed better in all the tests done.

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    Comparative study of Mobile IPv4 and Mobile IPv6
  • 113.
    Dayib, Abdirahman
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Johansson, Adam
    University West, School of Business, Economics and IT, Divison of Informatics.
    Praxis för kvalitetssäkring inom agil mjukvaruutveckling: en kvalitativ studie baserat på svenska IT-företag2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: A development process that has become very popular in the software industry is the so-called agile development process. The agile development process focuses on delivering functionality to the customer as quickly as possible. As this development methodology focuses on fast delivery, this can thereby lead to not carrying out suitable quality assurance for a software system.

    Purpose: The purpose of this study was to investigate which practices Swedish IT companies apply to ensure the quality of their software systems along with an agile development process.

    Method: The study was carried out with the help of a qualitative research approach to identify the practices that Swedish IT companies apply. In this study, data were collected using semi-structured interviews. The interviews were conducted with individuals who possess competence and experience of quality assurance for a software system along with an agile development process. In the analysis of data, a qualitative content analysis was applied to identify different practices to ensure the quality of a software system through the empirical data collected.

    Result: The results showed that the respective companies interviewed used similar practices to ensure the quality of their software systems. During the results section, a number of different practices were identified for quality assurance of a software system, but how these were used differed in some cases between the IT companies.

    Conclusion: In this study, ten main practices were identified that were used by Swedish IT companies to ensure the quality of their software systems. These practices were dashboards, continuous integration, test-driven development, refactoring, pair programming, short deliveries, collective access to the code, close dialogue with the customer, code standard and stand-up meeting. Although IT companies basically used these practices, they differed in the extent to which they were applied. The conclusion drawn for this study was therefore that Swedish IT companies tended to use practice to ensure the quality of their software systems along with agile software development, but the level at which they were applied and how they were used depended on how critical the work was in the business. 

  • 114.
    de Blanche, Andreas
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Operativsystem: teori och praktiskt handhavande2008Book (Other academic)
  • 115.
    de Blanche, Andreas
    et al.
    University West, Department of Engineering Science, Division of Computer and Electrical Engineering.
    Lundqvist, Thomas
    University West, Department of Engineering Science, Division of Computer and Electrical Engineering.
    A methodology for estimating co-scheduling slowdowns due to memory bus contention on multicore nodes2014In: Proceedings of the IASTED International Conference on Parallel and Distributed Computing and Networks, PDCN 2014, ACTA Press, 2014, p. 216-223Conference paper (Refereed)
    Abstract [en]

    When two or more programs are co-scheduled on the same multicore computer they might experience a slowdown due to the limited off-chip memory bandwidth. According to our measurements, this slowdown does not depend on the total bandwidth use in a simple way. One thing we observe is that a higher memory bandwidth usage will not always lead to a larger slowdown. This means that relying on bandwidth usage as input to a job scheduler might cause non-optimal scheduling of processes on multicore nodes in clusters, clouds, and grids. To guide scheduling decisions, we instead propose a slowdown based characterization approach. Real slowdowns are complex to measure due to the exponential number of experiments needed. Thus, we present a novel method for estimating the slowdown programs will experience when co-scheduled on the same computer. We evaluate the method by comparing the predictions made with real slowdown data and the often used memory bandwidth based method. This study show that a scheduler relying on slowdown based categorization makes fewer incorrect co-scheduling choices and the negative impact on program execution times is less than when using a bandwidth based categorization method.

  • 116.
    de Blanche, Andreas
    et al.
    University West, Department of Engineering Science, Division of Computer and Electrical Engineering.
    Lundqvist, Thomas
    University West, Department of Engineering Science, Division of Computer and Electrical Engineering.
    Addressing characterization methods for memory contention aware co-scheduling2015In: Journal of Supercomputing, ISSN 0920-8542, E-ISSN 1573-0484, Vol. 71, no 4, p. 1451-1483Article in journal (Refereed)
    Abstract [en]

    The ability to precisely predict how memory contention degrades performance when co-scheduling programs is critical for reaching high performance levels in cluster, grid and cloud environments. In this paper we present an overview and compare the performance of state-of-the-art characterization methods for memory aware (co-)scheduling. We evaluate the prediction accuracy and co-scheduling performance of four methods: one slowdown-based, two cache-contention based and one based on memory bandwidth usage. Both our regression analysis and scheduling simulations find that the slowdown based method, represented by Memgen, performs better than the other methods. The linear correlation coefficient (Formula presented.) of Memgen's prediction is 0.890. Memgen's preferred schedules reached 99.53 % of the obtainable performance on average. Also, the memory bandwidth usage method performed almost as well as the slowdown based method. Furthermore, while most prior work promote characterization based on cache miss rate we found it to be on par with random scheduling of programs and highly unreliable.

  • 117.
    de Blanche, Andreas
    et al.
    University West, Department of Engineering Science, Division of Computer, Electrical and Surveying Engineering.
    Lundqvist, Thomas
    University West, Department of Engineering Science, Division of Computer, Electrical and Surveying Engineering.
    Terrible Twins: A Simple Scheme to Avoid Bad Co-Schedule2016In: Proceedings of the 1st COSH Workshop on Co-Scheduling of HPC Applications / [ed] Trinitis, Carsten ; Weidendorfer, Josef, Munchen, 2016, Vol. 1, p. 1-6Conference paper (Refereed)
    Abstract [en]

    Co-scheduling processes on different cores in the same server might lead to excessive slowdowns if they use a shared resource,like the memory bus. If possible, processes with a high shared resource use should be allocated to different server nodes to avoid contention, thus avoiding slowdown.This paper introduces the simple scheme of avoiding to coschedule twins, i.e., several instances of the same program.The rational for this is that instances of the same program use the same resources and they are more likely to be either low or high resource users − high resource users should obviously not be combined, but a bit non-intuitively, it is also shown that low resource users should also not be combined in order to not miss out on better scheduling opportunities.This is verified using both a statistical argument as well as experimentally using ten programs from the NAS parallel benchmark suite. By using the simple rule of forbidding twins, the average slowdown is shown to decrease from 6.6% down to 5.9%, and the worst case slowdown is lowered from 12.7% to 9.0%, indicating a considerable improvement despite having no information about any programs' resource usage or slowdown behavior.

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  • 118.
    de Blanche, Andreas
    et al.
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Mankefors-Christiernin, Stefan
    University West, Department of Technology, Mathematics and Computer Science, Division for Computer Science.
    Availability of Unused Computational Resources in an Ordinary Office Environment2010In: Journal of Circuits, Systems and Computers, ISSN 0218-1266, Vol. 19, no 3, p. 557-572Article in journal (Refereed)
    Abstract [en]

    The study presented in this paper highlights an important issue that was subject for discussionsand research about a decade ago and now have gained new interest with the current advances ofgrid computing and desktop grids. New techniques are being invented on how to utilize desktopcomputers for computational tasks but no other study, to our knowledge, has explored theavailability of the said resources. The general assumption has been that there are resources andthat they are available. The study is based on a survey on the availability of resources in anordinary o±ce environment. The aim of the study was to determine if there are truly usableunder-utilized networked desktop computers available for non-desktop tasks during the off-hours. We found that in more than 96% of the cases the computers in the current investigationwas available for the formation of part-time (night and weekend) computer clusters. Finally wecompare the performance of a full time and a metamorphosic cluster, based on one hypotheticallinear scalable application and a real world welding simulation.

  • 119.
    de Blanche, Andreas
    et al.
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Mankefors-Christiernin, Stefan
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics. University West, Department of Technology, Mathematics and Computer Science, Division for Computer Science.
    Method for Experimental Measurement of an Applications Memory Bus Usage2010In:   / [ed] Hamid Arabnia, CSREA Press , 2010Conference paper (Refereed)
    Abstract [en]

    The disproportion between processor and memory bus capacities has increased constantly during the last decades. With the introduction of multi-core processors the memory bus capacity is divided between the simultaneously executing processes (cores). The memory bus capacity directly affects the number of applications that can be executed simultaneously at its full potential. Thus, against this backdrop it becomes important to estimate how the limitation of the memory bus effects the applications performance. Towards this end we introduce a method and a tool for experimental estimation of an applications memory requirement as well as the impact of sharing the memory bus has on the execution times. The tool enables black-box approximate profiling of an applications memory bus usage during execution. It executes entirely in user-space and does not require access to the application code, only the binary. 

  • 120.
    de Blanche, Andreas
    et al.
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Mankefors-Christiernin, Stefan
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics. University West, Department of Technology, Mathematics and Computer Science, Division for Computer Science.
    Minimizing Total Cost ($$) and Maximizing Throughput: A Metric for Node versus Core Usage in Multi-Core Clusters2010In: Proceedings of the International conference on Parallel and Distributed Processing Techniques and Applications:   / [ed] Hamid R. Arabnia, Las Vegas: CSREA Press , 2010, p. 241-248Conference paper (Refereed)
    Abstract [en]

    When most commercial clusters had one processor core each, decreasing the runtime meant executing the application over more nodes – the associated cost (in $) would scale linearly with the number of nodes. However with the recent advances of multi-core processors the execution time can be increased by utilizing more nodes or by utilizing more cores in the same nodes. In the industrial cluster environments a key question is how to run the applications, to minimize the total cost while maximizing the throughput and solution times of the individual jobs. The number of core used and their contribution to the total runtime reduction is especially interesting since companies often use commercial software that is licensed per year and process. The annual license cost of one single process is often far greater than that of a complete cluster node including maintenance and power. In this paper we present a metric for the calculation of the optimal way to run an application on a cluster consisting of multi-core nodes in order to minimize the cost of executing the said job. 

  • 121.
    de Blanche, Andreas
    et al.
    University West, Department of Engineering Science, Division of Automation and Computer Engineering.
    Namaki, Nima
    University West, Department of Engineering Science, Division of Automation and Computer Engineering.
    Mankefors-Christiernin, Stefan
    University West, School of Business, Economics and IT, Division of Computer Engineering. University West, Department of Technology, Mathematics and Computer Science, Division for Computer Science.
    Multicore Clusters for CFD Simulations: Comparative Study of Three CFD-Softwares2012In: PROCEEDINGS OFTHE 2012 INTERNATIONAL CONFERENCE ONPARALLEL AND DISTRIBUTED PROCESSING TECHNIQUES ANDAPPLICATIONS, PART II / [ed] Hamid R. Arabnia, Hiroshi Ishii, Minoru Ito Kazuki Joe, Hiroaki Nishikawa, CSREA Press, 2012, p. 855-852Conference paper (Refereed)
    Abstract [en]

    Multicore processors have come to stay, fulfill Moore’s law and might very well revolutionize the computer industry. However, we are now in a transitional period before the new programming models, numerical algorithms and general computer architecture have been developed and the software has been rewritten. This paper focuses on the effects multicore based systems have on industrial computational fluid dynamics (CFD) simulations. The most significant finding was that five of the models ran faster when only one process was executed on each multicore node instead of two. In these cases the execution time was increased by between 6.5% and 64% with a median increase of 10% when utilizing both cores.

  • 122.
    Demirsoy, Delil
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Holm, Erik
    University West, School of Business, Economics and IT, Divison of Informatics.
    En studie om Big data och personlig integritet: Vad vet studenter om lagring av deras personliga uppgifter?2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This research study examines students' knowledge of personal data stored by institutions of higher education as well as, whether there are differences between the genders regarding the knowledge and the management of this stored data. This is connected to the expanding storage of data and the use of it through Big data within the organisations where it was shown to have impact on the personal integrity. Previous studies report that there is a knowledge gap within society regarding the information on what is stored. In addition to this, research showed that there are differences between genders about the knowledge and control of their personal data. Therefore, this study focuses on students' knowledge of what higher education institutions store about them as well as whether there are differences between genders.

    This study applies a quantitative research method in the form of electronic questionnaires for data collection. These questionnaires were handed out to students which contained questions about students' knowledge and views about their institution's storage and management of their personal data. A total of 151 people participated in this study, where 126 of the participants stated that they were students.

    Moreover. this study includes some elements of qualitative research methods where some of the questions in the electronic questionnaires could be answered in free text. The qualitative and quantitative methods were later analyzed and compared to Petrionio's CPM-theory and its five principles regarding the personal integrity. The result of the study showed that students' have a vague form of knowledge regarding the data stored by institutions of higher education. The research also indicated that there are differences between the sexes in the handling of personal data. However, our findings show that the lack of dropout analysis makes the mentioned findings quite difficult to be fully verified.

    The result has shown that several students did not feel secure when organizations within higher educational institutions stored personal data about them. This is because they feel that their knowledge on what is being stored is insufficient which consequently led them to feel a lacking control about their own personal integrity. Thus, results showed that most people think that the educational institutions should provide more specific information about the personal data that they store about them.

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  • 123.
    Dervisevic, Amel
    et al.
    University West, Department of Economics and IT, Divison of Informatics.
    Talos, Robert
    University West, Department of Economics and IT, Divison of Informatics.
    Användaracceptans av videokonferensteknik för samordnad vårdplanering i primärvården: en kvantitativ studie grundad på UTAUT-modellen2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Västra Götaland (VGR) began in the 2000s to introduce an alternative form of meeting, meeting remotely via video, for coordinated care planning at hospital discharge in the region. Hospitals and local authorities have started to use the technology and the format of the meetings but regardless access to materials and training to primary care have a low degree of use. The purpose of this study was to determine the factors that influence the intention to use remote meetings via video technology in primary care. The research question for the study is, what factors affect health professionals' intention to use remote meetings via video in primary care? To find out which factors affect health professionals the study has been based on user acceptance theory called Unified Theory of Acceptance and Use of Technology (UTAUT). The study uses a quantitative approach with web surveys as a tool for data collection because it is best suited with the theory UTAUT. Based on data collected from web questionnaires a result was produced in the Statistical Package for Social Sciences (SPSS) by displaying descriptive statistics and perform a correlation analysis and regression analysis. The result shows that the factors that influence the intention to use the video technology is Performance Expectancy, Effort Expectancy and Social Influence. Beyond that the results show that Faciltitating Conditions have a direct impact on the Use Behavior.

  • 124.
    Djebbar, Fatiha
    University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Securing IoT data using steganography: A practical implementation approach2021In: Electronics, E-ISSN 2079-9292, Vol. 10, no 21, article id 2707Article in journal (Refereed)
    Abstract [en]

    Adding network connectivity to any “thing” can certainly provide great value, but it also brings along potential cybersecurity risks. To fully benefit from the Internet of Things “IoT” system’s capabilities, the validity and accuracy of transmitted data should be ensured. Due to the constrained environment of IoT devices, practical security implementation presents a great challenge. In this paper, we present a noise-resilient, low-overhead, lightweight steganography solution adequate for use in the IoT environment. The accuracy of hidden data is tested against corruption using multiple modulations and coding schemes (MCSs). Additive white Gaussian noise (AWGN) is added to the modulated data to simulate the noisy channel as well as several wireless technologies such as cellular, WiFi, and vehicular communications that are used between communicating IoT devices. The presented scheme is capable of hiding a high payload in audio signals (e.g., speech and music) with a low bit error rate (BER), high undetectability, low complexity, and low perceptibility. The proposed algorithm is evaluated using well-established performance evaluation techniques and has been demonstrated to be a practical candidate for the mass deployment of IoT devices.

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    Electronics
  • 125.
    Djebbar, Fatiha
    et al.
    University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Nordström, Kim
    Cybersecurity Product Compliance Group,Stockholm (SWE).
    A Comparative Analysis of Industrial Cybersecurity Standards2023In: IEEE Access, E-ISSN 2169-3536, Vol. 11, p. 85315-85332Article in journal (Refereed)
    Abstract [en]

    Cybersecurity standards provide a structured approach to manage and assess cybersecurity risks. They are the primary source for security requirements and controls used by organizations to reduce the likelihood and the impact of cybersecurity attacks. However, the large number of available cybersecurity standards and frameworks make the selection of the right security standards for a specific system challenging. The absence of a comprehensive comparison overlap across these standards further increases the difficulty of the selection process. In situations where new business needs dictate to comply or implement additional security standard, there may be a risk of duplicating existing security requirements and controls between the standards resulting in unnecessary added cost and workload. To optimize the performance and cost benefits of compliance efforts to standards, it is important to analyze cybersecurity standards and identify the overlapping security controls and requirements. In this work, we conduct a comparative study to identify possible overlaps and discrepancies between three security standards: ETSI EN 303 645 v2.1.1 for consumer devices connected to the internet, ISA/IEC 62443-3-3:2019 for industrial automation and control systems, and ISO/IEC 27001:2022 for information security management systems. The standards were carefully chosen for their broad adoption and acceptance by the international community. We intentionally selected standards with different areas of focus to illustrate the significant overlaps that can exist despite being designed for different environments. Our objective is to help organizations select the most suitable security controls for their specific needs and to simplify and clarify the compliance process. Our findings show a significant overlap among the three selected standards. This information can help organizations gain a comprehensive understanding of common security requirements and controls, enabling them to streamline their compliance efforts by eliminating duplicated work especially when meeting the requirements of multiple standards.

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  • 126.
    Donev, Jovan
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Mozaffari, Maxim
    University West, School of Business, Economics and IT, Divison of Informatics.
    Facebook: Gratistjänsten som endast kostar användarens personliga data: En surveyundersökning om svenska Facebook-användares kunskap om Facebooks datainsamling och hur deras användning och kunskap påverkar deras personliga integritet2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Facebook is the largest social media site in the world with the highest amount of users. However, many people do not read Facebook's terms of use and use the service anyway, which possibly means that the user does not know what data Facebook is collecting. The purpose of this study is to investigate how aware Swedish users are about the data Facebook collects about them and how their knowledge and use of the service can affect their personal privacy and security. The method used in this study was web surveys that were sent out to Swedish Facebook users, where questions about how they use the service and what they are believed to know about Facebook's data collection. What emerged from this study was that users today are aware that Facebook collects information about them, but not exactly what type of data. This lackof knowledge, together with how they use Facebook's services, has been shown to affect their personal privacy and security.

  • 127.
    Dosé, Fredrik
    et al.
    University West, Department of Engineering Science.
    Andersson, Mathias
    University West, Department of Engineering Science.
    Python vs. Ansible: En jämföreslsestudie2023Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    With the increased complexity and size of today's networks compared to how it was before, automation of network devices is becoming more and more relevant. This thesis report takes a closer look at two network automation options available on the market, Ansible and Python. Through testing and fact-checking, this report will provide answers to questions about which option performs best in terms of speed, resource use and ease of use, and on this basis try to answer the question which tool you as a network technician should choose to use.

    By doing tests against Cisco networking devices, this study finds out the differences, and differences exist. Python turns out to be both faster and significantly less resource intensive than Ansible. The advantage that Ansible has is that it is a program specifically designed for network automation and therefore the management of skripts and devices is easier with Ansible.

  • 128.
    Drobic, Aldin
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Omarson, Argon
    University West, School of Business, Economics and IT, Divison of Informatics.
    Operatörers syn på användande av ERP-system: En kvalitativ studie inom en produktionsindustri om användarens arbetsvilja2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Information systems have become increasingly important for businesses. Businesses acquire Enterprise resource planning systems (ERP systems) to be able to increase their profitability. Management's main goals with the implementation of ERP systems are often focused on increasing the company's competitive shares. The risk is, if the business focuses its attention too much on competition, the ERP-implementation will affect employees negatively. This study aims to investigate how the operators feel that their willingness to work is affected when using ERP systems in production manufacturing. This has been a case study conducted on the manufacturing industry SKF. Data collection was performed through semi-structured interviews. The results showed that the operators' feel that their willingness to work can be affected both negatively and positively when ERP systems are used. The study attempts to contribute to the literature on ERP systems in informatics. The purpose is to capture the operator's perspective regarding the implementation of ERP, and the socio-technical theory is the point of view when investigating how the operator feels that their willingness to work is affected. The study concludes that the operators' feel that their willingness to work is affected based on the management's strategic decision regarding ERP-implementation.

  • 129.
    Dughem, Petrus
    et al.
    University West, School of Business, Economics and IT, Division of Media and Design.
    Karinsdotter, Matilda
    University West, School of Business, Economics and IT, Division of Media and Design.
    Utvecklare och designers upplevelse av samarbete i praktiken: Varför är det på ett visst sätt?2021Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    This report intends to delve into how professionals in UX design and development work together in practice. We also examine why professional roles are divided into developers and designers. In literature studies, we can see that over the years, the collaboration between developers and designers has been investigated in various ways abroad. In Sweden, there is unfortunately a lack of scientific research on cooperation. Inevitable preconceived notions about how the working method and the collaboration between developers and designers were with us, due to previous literature studies, which made a qualitative interview study well suited to map and nuance the situation in practice.

    The results we found through our interview study indicate that the collaboration between the professional roles in smaller companies can be influenced to a greater extent than in larger companies. A close collaboration where ideas and thoughts are shared between developers and designers proved to be common in the respondents’ workplaces. We were surprised to see that strict theoretical methods were used to a lesser extent. The knowledge about the agile method, on the other hand, was great, but was not fully applied according to the theory.

    We found that a merging of the roles is possible, however at the expense of the quality of the work performed, as the area of responsibility is often large. Which may therefore be the reason why it is currently not so common to perform both roles professionally. Specializing in a profession can therefore be beneficial. We also found that it was more common to start from one professional role, and then move on from there to the other.

  • 130.
    Edwinson, Jennifer
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Larsson, Sarah
    University West, School of Business, Economics and IT, Divison of Informatics.
    UX-design – stämmer teorierna medverkligheten?: En kvalitativ innehållsanalys av annonser och kurslitteratur2021Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    The UX industry is growing more as well as the competition. The purpose of this study is to find out if the UX methods described in the course literature are in line with what the industry demands. In order to find this out, a content analysis has been performed on job advertisements, where requirements and tasks form categories that are then compared with course literature that is available in at least three different UX educations in Sweden. The empirical material has then been compared with relevant theories to get a picture of which methods and working methods are most relevant for a UX designer today. The theories on which this study is based on are design processes based on Rex Hartson and Partha S Pyla's "The UX book", where the relevance and steps of the design process are reviewed, and then supplemented with other theories about the process and working methods. The results show that most of the concepts covered in the job advertisement are more or less included in the literature and processes, tests, research that are the most frequent mentioned in the advertisements are described in detail in the literature. The main difference between the job advertisements and the literature is tools that are used in connection with sketches and prototypes, where the lack of information in the literature was not reflected in the results of the advertisements.

  • 131.
    Ek, Christian
    et al.
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Norling, Edvin
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Performance evaluation of a network infrastructure monitored with SNMP polls and traps2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The result of this bachelor thesis is a comparison between three different network devices on how many resources that is used on them when utilizing SNMPv1 and SNMPv2c polls and traps. The devices tested are an old Cisco router, a modern Juniper gateway and a Linux server. The experiments conducted prove that SNMP does not utilize the network devices resources to a point that it becomes an issue for the performance. These tests are done to ensure that SNMP do not use up to many resources on the infrastructure which would decrease the functionality and performance of the network. This study shows whether or not SNMP monitoring is a problem for the enterprise network

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  • 132.
    Ekerum, Tommy
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Larsson, Anna
    University West, School of Business, Economics and IT, Divison of Informatics.
    "Processverkstan": Forum för kommunal e-tjänstutveckling2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study investigates the start of a project on the department for IT in Sotenäs, Munkedal and Lysekil municipalities and on the department handling establishments of businesses in Lysekil. The aim of the study is to describe the startup of process mapping and e-service development in municipal organisation. The focus lies on the early stages and from an internal perspective. On the department for IT, they have just started working with e-service development. Before that there had not been much development of e-services in Lysekil municipality. They have formed a concept which they call "Processverkstan". In this format the different departments of the municipalities are able to get help from the department of IT, who has initialized this, and who will also lead the work. People from departments together with people from department of IT will in workshops be able to draw a process map for the area that is covered by the e-service. The tool that is used is a computer program by the name of Barium Live.

    The study is a qualitative study, performed as a case study. Semi-structured interviews and observations are used to collect data. Theories used are e-services, stakeholders for e-services and process mapping.

    The results from the study show that different stakeholders have cooperated to develop the e-service. The end user has not participated, and the respondents wish to involve the end user in the process of e-service development. They have had a clear focus on why the work is being done - to make the communication between the municipality and the citizen easier when they want to apply for establishment of a business in Lysekil. This has been done with process mapping as a foundation. This means that as you are developing an e-service that is supposed to be of use to the citizen, you are at the same time able to accomplish an activity development. The cooperation has been characterised by engagement, participation and a clear focus on use for the citizen.

  • 133.
    Eklund, Matilda
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Tavakoli Banizi, Farrokh
    University West, School of Business, Economics and IT, Divison of Informatics.
    Att aktivera mottagaren: en kvalitativ studie av interaktion mellan bild, mottagare och kontext ur ett marknadsföringsperspektiv2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A large part of today's advertising is avoided by consumers who are tired of the endless amount of advertising out there. It makes it difficult for advertising creators to be seen and be able to attract the attention of the target market, which has led to the appearance of the phenomenon interactive advertising. Through the active contribution that the method offers, the advertising becomes more personal and creates a closer connection between transmitter and recipient. A similar but more intrusive method that utilizes the environment like interactive advertising is called guerilla marketing. The purpose of the study is to examine how an effective message can be conveyed within guerilla marketing and interactive advertising through interaction with the two concepts of context and the Zeigarnik effect.

    The methods used in the study are interviews with six informants and document analysis of four representative images illustrating how guerilla and interactive advertising might look like. The study shows that the Zeigarnik effect is used in marketing without advertising creators being aware of it, for instance in terms of the creative circle. It is all about leaving the final piece for the recipient to fill in on their own. The study also shows that a combination of humor and the Zeigarnik effect can increase the advertising effectiveness as humor seems to be desirable for recipients and contribute to higher engagement. Recipients' activities by the advertising image is, according to the study, affected by the social context as personality and the temporary company influences choices and attitude. Finally, the study suggests that guerilla and interactive advertising which utilizes active participation may benefit companies in both short and long term.

  • 134.
    Eliasson, Christoffer
    et al.
    University West, School of Business, Economics and IT, Division of Media and Design.
    Lauronen, Sanna
    University West, School of Business, Economics and IT, Division of Media and Design.
    Användbarhet inom navigering på hemsidor för desktop- och mobilversion: En innehållsanalys på Sveriges regioners hemsidor2021Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    Due to the Covid-19 pandemic people are seeking information regarding local restrictions and guidelines, primarily on a regional level more than ever before. To best serve this influx of visitors to the webpages of the Swedish regions, their webpages need to have a high standard of usability implemented. Therefor the purpose of this paper is mainly to contribute with knowledge to future web developers about the importance of implementing usability in modern web pages. To fulfill this purpose, we constructed a few questions that this paper will find an answer to. Firstly, does the region’s web pages include any support for people with disabilities in their navigation in a usability perspective? Secondly, to what extent does the navigation system on the region’s web pages fulfill Nielsen's theories about usability? Thirdly, are there any differences in the navigation system in a usability perspective between the web pages on mobile compared to the desktop version. To answer these questions a quantitative content analysis method was chosen to give us the best result. This meant that a coding scheme was created containing 18 variables constructed from previous research in the field. From the result a dataset was created, using the program SPSS. From this, we could conclude that the navigation system on the regions web pages did include support in various degrees for people with disabilities. The result for this question was not perfect. It showed that there was some support for people with disabilities, but there is some work to be done before it can be considered a good result. In most of the cases studied, the web pages lived up well to Nielsen’s theories about usability. We also found out that there are differences between the mobile versions compared to the desktop versions of the web pages. This does not mean that it is a negative thing from a usability perspective that there are differences between them. Both versions lived up well to usability, but their methods of reaching this differed.

  • 135.
    Elmi, Nimo Musse
    et al.
    University West, School of Business, Economics and IT, Division of Media and Design.
    Ogbamichael, Miriam
    University West, School of Business, Economics and IT, Division of Media and Design.
    Personligt rekommenderat för dig: En kvalitativanalys om huruvida Netflixanvändare påverkas av rekommendationssystem och personliga rekommendationer2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this study, we have examined Netflix users' general perception and understanding of filtering, recommender system and personal recommendations. We investigated from a user perspective because this perspective centered around users was lacking in previous research. To answer the research questions, we conducted a semi-structured internet-based interview that gave us the opportunity to understand the underlying cause of their opinion. We interviewed ten experienced Netflix users. The results showed that Netflix users we studied were generally not satisfied. They described that their decision-making process was influenced by the filtering and the recommendations they received from the service. Of the ten interviewed users, only two were satisfied with the recommendations and used the personal recommendations they received. The users' opinion about recommender system affected their views of personal recommendations and filtering. The result also showed that the users seek understanding of how Netflix recommends, they want to see a clear connection between their previously seen content with their current personal recommendations. At the end of the study, we gave future recommendations to further work in this subject.

  • 136.
    Eneroth Johansson, Martin
    et al.
    University West, School of Business, Economics and IT, Division of Media and Design.
    Ryås, Cornelia
    University West, School of Business, Economics and IT, Division of Media and Design.
    Vad som påverkar animatörers val i skapandet av fotorealistisk 3D-animation2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of the paper is to show some possible factors that affect the animators’ choices when working on photorealistic animation based on references. Research in computer graphics has since 1970 had as a main goal to achieve photorealism. When working on 3D-production for film, animation is a part of the process. This part aims to give life to digital characters, among other things. References are used as a tool to achieve photorealism. This could for example be a video of animals or people moving in the same way as the characters in the animation is supposed to do. But many experiences show that the animation could be uninteresting and lack credibility if the animator sticks to close to the reference. This forces the animator to deviate from the reference material in order to achieve a photorealistic animation. We want to find out which choices the animators are making in that situation and what they are based upon.

    The paper highlights six animators’ views on what affects their choices when working with photorealistic animation. From the interviews a number of factors that the animators themselves found to affect them, was distinguished. The factors that the paper highlights with the support of theories and the answers from the interviews are clarity, interest, characters, influence of others, time, intuition, judgment, experience, subconscious factors and personal background. 

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    Val_I_Animation
  • 137.
    Engborg, Victor
    et al.
    University West, School of Business, Economics and IT, Division of Media and Design.
    Andersson, Johan
    University West, School of Business, Economics and IT, Division of Media and Design.
    ”Bilderna är ju identiska!”: En kvalitativ jämförelse mellan en datorgenererad bild och ett fotografi, i en modern tolkning av Meyer m.fl. (1986)2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This research is a methodical assembly of already existing techniques and methods for assessing photorealistic rendering within the field of computer graphics. The aim of this study is to reproduce a three-dimensional familiar object that cannot be distinguished from a photograph and pinpoint different aspects between the images. The creation and the process of the computer-generated image is presented in this paper, which involves essential components such as the fundamentals of photography and how different Global illumination algorithms work. To put these theories in place, a physical experiment was conducted to verify the result. The results show that the respondents cannot determine with certainty which image is computer generated.

  • 138.
    Ericsson, Mikael
    et al.
    University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing.
    Johansson, Dahniel
    University West, Department of Engineering Science, Division of Production Systems.
    Stjern, David
    AI-Based Quality Control of Wood Surfaces with Autonomous Material Handling2021In: Applied Sciences, E-ISSN 2076-3417, Vol. 11, no 21, p. 9965-9965Article in journal (Refereed)
    Abstract [en]

    The theory and applications of Smart Factories and Industry 4.0 are increasing the entry into the industry. It is common in industry to start converting exclusive parts, of their production, into this new paradigm rather than converting whole production lines all at once. In Europe and Sweden, recent political decisions are taken to reach the target of greenhouse gas emission reduction. One possible solution is to replace concrete in buildings with Cross Laminated Timber. In the last years, equipment and software that have been custom made for a certain task, are now cheaper and can be adapted to fit more processes than earlier possible. This in combination, with lessons learned from the automotive industry, makes it possible to take the necessary steps and start redesigning and building tomorrows automated and flexible production systems in the wood industry. This paper presents a proof of concept of an automated inspection system, for wood surfaces, where concepts found in Industry 4.0, such as industrial Internet of things (IIoT), smart factory, flexible automation, artificial intelligence (AI), and cyber physical systems, are utilized. The inspection system encompasses, among other things, of the shelf software and hardware, open source software, and standardized, modular, and mobile process modules. The design of the system is conducted with future expansion in mind, where new parts and functions can be added as well as removed.

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  • 139.
    Eriksson, Aiden
    University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Unity Engine Machine Learning Agents: Creating bots that solve problems like a human2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Unity Machine Learning Agents is an open-source toolkit designed to allow anyone develop AI and to integrate machine learning AI into their Unity Engine games. The toolkit can be integrated with and ran through the Unity Development Platform where agents and environments can be configured, allowing developers to design scenarios as if they were creating games. This paper evaluates the possibility of replacing traditional bots with agents and what limitations they have. The agents were trained with the toolkits PPO trainerthrough two scenarios, a puzzle and a maze, where the agent’s information input is limited to artificial vision in 2-dimentions.

    The results show that the agents could solve the puzzle and maze, but that they struggle when facing new problems due to the limitations of PPO training when complexity increases unexpectantly. The agents could therefore solve specific problems and they work well as a bot replacement if specialized but cannot at this point replace traditional bots in games where they need specialty in several areas.

  • 140.
    Eriksson, Andrea
    et al.
    University West, Department of Economics and IT, Division of Media and Design.
    Persson, Sandra
    University West, Department of Economics and IT, Division of Media and Design.
    Hur Snapchat som applikation integreras i marknadsföringens utveckling inom företag2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    There have been changes in the way companies think about marketing. Developments in technology have made the communication easier and faster. Marketing has gone from focusing on the product or service to a customer-focused mindset where companies want to deepen their customer relationships in order to create more personalized and valuable offers according to the customer needs. Social media has become a major part of everyday life and companies therefore tries to reach their customers there. Since the emergence of new social media and it's growing in popularity, companies need to consider the benefits and how they will use the media in connection with its marketing purposes.

    Snapchat is an application that has increased in popularity and in users in recent years. In the current situation, Snapchat is one of the largest social media among teenagers. Companies therefore begin creating their own Snapchat accounts where users can follow and share their pictures and videos.

    Our thesis aims to examine how companies view the use of Snapchat, from a marketing purpose, and then compare this with previous research on the marketing and use of private Snapchat. We want to find out how Snapchat is different from other social media that companies use and what their strategies are, and how they look on the intimate communication with followers. Through qualitative interviews, we get an understanding of how companies view the topic.

    The result shows that all respondents appreciate the personal and rapid two-way communication. Respondents perceive the application as more spontaneous, unfiltered and playful compared to the other social media that they use. Snapchats interface, however, create problems for companies as they do not have access to a detailed statistical review of its followers and its published content. It is clear to see patterns of the companies' basic concept of marketing and previous research on the topic. Since the development of marketing is constantly changing, the companies are starting to think more different.

  • 141.
    Eriksson, Hampus
    et al.
    University West, School of Business, Economics and IT, Division of Media and Design.
    Johansson, Andreas
    University West, School of Business, Economics and IT, Division of Media and Design.
    Berättande miljöer: En tematisk studie av karaktärers inverkan på digitala miljöers narrativ2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to examine if and to what extent characters should be included in the concept of Environmental Storytelling, which treats environments,objects, and atmosphere as storytelling elements within digital environments. Contemporary use of Environmental storytelling is a means of conveying story within game design. This study sought to confirm or reject the hypothesis that game design is enhanced by incorporating characters as a part of Environmental Storytelling in the process of creating new games and digital spaces. The study shows through its survey how characters can tell stories about the environment just as much or even to a greater extent than the environment conveys narratives about its characters. To validate or contradict these claims, a digital scene was created were ten persons were asked to interpret this scene visually. In conjunction with the survey, each participant was expected to subjectively interpret and account for a fictitious chain of events and causes and effects in the scene independently. The group was split in half were fiveparticipants also had a character placed in the scene in order for the survey to examine to what extent this results in a more detailed and precise re-telling of what has happened, is happening and might occur in the room. Through a narrative data analysis of the qualitative data that was gathered through interviews with participants, the study could present exciting findings. The result showed that characters have a significant influence over the environment and how the participants perceive it. The study reveals how the respondents with a character present in the scene recalled more details and consistent theories regarding the sequence of events. The character had less impact on the result than expected. Though however, the presence of a character was useful for the participant´s analysis process regarding them describing and strengthening their interpretation of the environments story, genre and where the narrative takes place. The conclusion of the study based on the results points towards how game designers could benefit from the environment and character design approaching one another to mediate the narrative of the digital world. The study constitutes a good foundation on which further research through more detailed experiments and analysis of today's video games can be made on this alternative view of environmental storytelling.

  • 142.
    Eriksson, Matilda
    University West, Department of Economics and IT, Division of Media and Design.
    Förståelse och interaktion i Runkeeper: En kvalitativ studie av Quantified-selfers uppfattning och erfarenheter av förståelse och interaktion i Runkeeper2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to find out how Quantified-selfers' interpretation of the collected data occur by describing their experiences. As interaction with the system and the collected data is a contributive element to the interpretation, the purpose was also to see how the interaction occur in a system used by Quantified-selfers, and how the interaction influence and results in their understanding. This was investigated by interviewing users of the fitness-tracking application Runkeeper and observe, and discuss, a reconstruction of their interaction with the application.The study showed that the reflection and interpretation of the statistics of the collected data differed between the users as they saw different patterns and came to different conclusions based upon it. Mainly, the participants perceived the statistics as easy to understand but there were also some obstacles for the interpretation. Interaction played an essential part when the users were to look at the statistics and interpret it. It led to the interpretation by different goals and sub-targets and it occurred when the users explored and abstracted, or elaborated the collected data. In the discussion it is reviewed why the interaction and the interpretation occur the way they do. Finally it is suggested how systems for Quantified-selfers, in the future may be designed to facilitate the reflection and interpretation of the collected data.

  • 143.
    Eriksson, Per
    University West, School of Business, Economics and IT.
    Införandet av ett dokumenthanteringssystem vid ett gränsöverskridande projekt: Medföljande problem och möjligheter2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is an independent part of a co-productionproject between several independent parties. The studywas conducted as an experimental case study with a methodical approach on aproject group. The report has been about explore and illuminate the problemsand possibilities a introduction of a document management system will have andleads to. The system is SharePoint and it’s a business collaboration platformfor enterprises. The target audience is primarily the decision makers who arein the process of selecting a technology support, but also researchers andstudents. The project has participants from businesses and college (Saab, VolvoCars, Autoliv and Chalmers) when the study started the project group was usingonly the physical meetings and e-mail to distribute the documents. Theboundaries have been that no valuation of the document's content has occurred,nor have the modules and functions other than those related to documents anddocument management. The study was conducted by questionnaire, observation andparticipant observation and a review of several articles on the subject.Conclusions were that for start the IT department ensures that all files andprograms needed for the environment has been updated before first try. It’s away of reducing the risk of 'information overload' and increasing the ease ofpublishing documents, and improves traceability, availability and versioning ofdocuments with an introduction of a DMS (SharePoint).

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  • 144.
    Eriksson, Per
    University West, School of Business, Economics and IT, Divison of Informatics.
    The role for IT-support in Lean concepts: A qualitative study of municipalities2011Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis have the intention of to create a deeper understanding around IT-supports role in Lean concepts, and has been done with a hermeneutic approach and a theory creating approach as a case study with qualitative method, semi-structured interviews has been used as data collecting technique. The interview respondents were one IT-manager and one department manager from 4 municipalities. The data has then been analyzed by part- and comprehensive analysis with a hermeneutic approach and presented in the 4 different cases, that the municipalities used represent, and in one where all is combined. The results show massive use of computers but not any use of IT-support for Lean according to the respondents. Conclusions that where made was that programs like the business system in use in the organization and Microsoft Office package not is seen as a IT-support for Lean despite that several of the respondents use it to do Lean things like processes and that this is more or less considered as an obvious package to have.

    They have a tendency to think it has to be a separate IT-system or program especially made for Lean for it to be important and be interpreted as an IT-support for Lean.

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  • 145.
    Eriksson, Åsa
    University West, Department of Economics and IT, Division of Media and Design.
    "Strike a pose, there’s nothing to it": En kvalitativ studie om kvinnor & selfies2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A selfie is a self-portrait photograph, taken by holding a mobile camera device and pointing it at oneself. Today's technology opens for new imagery and new ways to communicate, and the selfie is a prominent expression in the communication of today. Before social media and the Internet, photos were just physical objects stored in a photo album or a box at home, and the potential audience were limited. With the introduction of social media sites such as Facebook and Instagram, along with the prevalence of smartphones, selfies has become a socially acceptable way of expression available to vast audiences all around the world at the click of a button. But, does a selfie tell as much of our personality as the clothes on our body? The furniture in our homes, or what kind of music we listen to? Can a selfie replace a verbal introduction? How much of an effort is there behind a selfie? The purpose of this study is to investigate how young women interpret, use and consume selfies with the mobile photo-sharing application Instagram as a starting point. In this study I have used a combination of image analysis and group interviews. I have used two different groups of candidates, one that takes "selfies" on a regular basis, and one with lesser "selfie" frequency. I will proceed from Erving Goffman's dramaturgical perspective. Goffman believes that the interaction between people is comparable with a stage performance. The individual chooses their performance based on what kind of stage and audience is at their disposal. Image analysis concludes that a majority of respondents are inclined to take selfies with others. When the respondent is in a group setting it is not uncommon for them to try to fit as many people as possible in the photo, and as a consequence end up themselves on the fringe of the photo. When taking an individual selfie, image analysis shows that the more common setting is indoors, focused on the face of the subject. The majority of the respondent takes their selfies with the mobile phone straight ahead of them. The respondent begins to tilt the mobile phone depending on what she wants to capture in the picture. The study shows that selfies is complex and difficult to define and the appearance is central in the creation of a selfie. As a phenomenon, the selfie is a double edged sword, on one hand a popular form of expression and communication, and on the other it can be received by its viewers as repetitive and vain.

  • 146.
    Eringfält, Johan
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Hedvall, Erik
    University West, School of Business, Economics and IT, Divison of Informatics.
    Elektroniska val i Sverige: En insikt i medborgarens tankar kring införandet av elektroniskaval2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The pursuit for improvement and simpler solutions to common problems is something that is a common trait for humans. Digitalization is now seen as a solution to many common problems found in Sweden where it previously was utilizing pen and paper. Digitalization is spreading within Sweden and the election process is now in discussion. Other countries have carried out research on how an electronic voting system could work as well as how the citizens of that country viewed electronic voting systems. Earlier studies conclude that age, sex and other external factors initially determine whether a person is likely to use electronic voting systems or not. The purpose of this study is to investigate the attitude a Swedish citizen has towards a roll out of an electronic voting system. Two hypotheses were formulated from earlier research within the subject. These were: "More men than women will choose voting over the internet" and "More younger, than older people will choose voting over the internet". The main question and the hypotheses will be answered via an electronic questionnaire which contained both qualitative and quantitative questions. The result of our questionnaire concluded that the attitude of most of our respondents were positive and the main reason was convenience which arose from the ability to vote from home. The problem of feeling insecure about the systemwas also discussed and was a part of why some felt electronic voting systems were not something they wanted to use.To sum up, this study gives the reader an insight as to what a Swedish citizen feels about electronic voting systems and why they would choose to use or not to use it.

  • 147.
    Eurenius, Anders
    et al.
    University West, School of Business, Economics and IT.
    Härnströmer, Andreas
    University West, School of Business, Economics and IT.
    Mätning av attackbeteende och mönster med Cowrie2023Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    This thesis focuses on Cowrie, which is a honeypot for monitoring and analyzing attacks in networks. Honeypots were set up on Telia's network and data was collected for nine days using Modern Honey Network and Splunk on a Linode server. The results showed that one device received an exceptionally high number of attacks. This can probably be explained by the fact that three IP addresses deviate in the statistics. The results also showed that port 23 was more attacked than port 22. Attackers trying to gain access to the system used common usernames such as "root", "admin", "user" and "guest". These attackers also followed common password patterns, with popular choices like "admin", "123456", "123", "1234", "1" and "password". In attacks against port 23, it was observed that the attackers often used commands like "uname" to get information about the attacked systems. For attacks against port 22, commands such as "shell" and "system" were used, which gave the attackers the opportunity to take control of the system. Furthermore, the results showed that the majority of attacks came from Iran, followed by China. 

  • 148.
    Falkenberg Hansen, Kjertil
    et al.
    KTH Royal Institute of Technology, Stockholm, Sweden.
    Ljungdahl Eriksson, Martin
    University West, School of Business, Economics and IT, Division of Media and Design. Edsbyn.
    Atienza, Ricardo
    University College of Arts, Crafts and Design, Stockholm, Sweden.
    Sound design through large audience interaction2019In: Proceedings of the Sound and Music Computing Conferences / [ed] Barbancho I.,Tardon L.J.,Peinado A.,Barbancho A.M., CERN , 2019, p. 119-126Conference paper (Refereed)
    Abstract [en]

    In collaboration with Volvo Cars, we presented a novel design tool to a large public of approximately three million people at the three leading motor shows in 2017 in Geneva, Shanghai and New York. The purpose of the tool was to explore the relevance of interactive audio-visual strategies for supporting the development of sound environments in future silent cars, i.e., a customised sonic identity that would alter the sonic ambience for the driver and by-passers. This new tool should be able to efficiently collect non-experts’ sonic preferences for different given contexts. The design process should allow for a high-level control of complex synthesised sounds. The audience interacted individually using a single-touch selection of colour from five palettes and applying it by pointing to areas in a colour-book painting showing a road scene. Each palette corresponded to a sound, and the colour nuance in the palette corresponded to certain tweaking of the sound. In effect, the user selected and altered each sound, added it to the composition, and finally would hear a mix of layered sounds based on the colouring of the scene. The installation involved large touch screens with high quality headphones. In the study presented here, we examine differences in sound preferences between two audiences and a control group, and evaluate the feasibility of the tool based on the sound designs that emerged. Copyright: © 2019 Kjetil Falkenberg Hansen et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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  • 149.
    Feldt, Robert
    et al.
    Blekinge Institute of Technology.
    Lefteris, Angelis
    Aristotle University of Thessaloniki, Dept. of Informatics.
    Torkar, Richard
    Blekinge Institute of Technology.
    Samuelsson, Maria
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Links between the personalities, views and attitudes of software engineers2010In: Information and Software Technology, ISSN 0950-5849, E-ISSN 1873-6025, Vol. 52, no 6, p. 611-624Article in journal (Refereed)
    Abstract [en]

    Context:Successful software development and management depends not only on the technologies, methods and processes employed but also on the judgments and decisions of the humans involved. These, in turn, are affected by the basic views and attitudes of the individual engineers.Objective:The objective of this paper is to establish if these views and attitudes can be linked to the personalities of software engineers.Methods:We summarize the literature on personality and software engineering and then describe an empirical study on 47 professional engineers in ten different Swedish software development companies. The study evaluated the personalities of these engineers via the IPIP 50-item five-factor personality test and prompted them on their attitudes towards and basic views on their professional activities.Results:We present extensive statistical analyses of their responses to show that there are multiple, significant associations between personality factors and software engineering attitudes. The tested individuals are more homogeneous in personality than a larger sample of individuals from the general population.Conclusion:Taken together, the methodology and personality test we propose and the associated statistical analyses can help find and quantify relations between complex factors in software engineering projects in both research and practice.

  • 150.
    Feldt, Robert
    et al.
    Blekinge Institute of Technology.
    Torkar, Richard
    Blekinge Institute of Technology.
    Angelis, Lefteris
    Aristotle University of Thessaloniki.
    Samuelsson, Maria
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Towards individualized software engineering: empirical studies should collect psychometrics2008In: Proceedings of the 2008 international workshop on Cooperative and human aspects of software engineering: International Conference on Software Engineering, ACM , 2008, p. 49-52Conference paper (Other academic)
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