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  • 451.
    Runesson, Sandra
    et al.
    University West, Department of Economics and IT, Divison of Informatics.
    Young, Maria
    University West, Department of Economics and IT, Divison of Informatics.
    Samverkan mellan Trestads kommuner: ett kommunöverskridande samarbete för en gemensam e-förvaltningsutveckling2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Public sector is now developing an electronic society through strategic planning with help of IT, and is then called e-governance. There are more demands on Sweden's municipalities to develop their government services by offering e-services, to become more transparent. E-governance needs to be promoted through an innovative and participatory approach to improve quality and effectiveness. To support the development of e-governance, the Swedish Association of Local Authorities and Regions (SALAR) has established a strategy to help the municipal sector. They have decided that it is necessary that local governments increasingly need to collaborate. However it should not be taken for granted that collaboration generates success. Several earlier studies have shown this kind of arrangements are difficult to manage, particularly because of the lack of initiative to clarify the purpose of the collaboration, professional differences and distinctions in internal practices and cultures. The aim of the present study is to find out what opportunities and what obstacles municipal employees experience when several municipalities collaborate to develop a general e-service. By the results we intend to gather knowledge about how municipal collaborations can be beneficial. We have in our survey chosen to use a qualitative method. By performing a case study in the form of interviews and observations we have sought a deeper understanding in the field of cross municipal collaboration. The empirical data has been analysed from a hermeneutic interpretive approach and is to be put in relation with previous research but also to provide new perspectives on municipal collaboration when developing a general e-service. The analysis of the results shows the participant's attitude and motivation, team composition, distinct leadership and different organisation conditions were significant factors affecting the outcome of cross municipal collaboration. The conclusion of the study indicates that initial collaboration on projects when developing a general e-service between municipals should be carefully selected, because of the organisational differences. Extra time should be given to planning and establishing the outcome of the collaborations within all the municipal from a distributed project management. Cross municipal collaboration is based on ideas, knowledge and skills exchange but the major obstacle is the time given and the internal and external organisation differences.

  • 452.
    Ryberg, Anders
    et al.
    University West, Department of Technology, Mathematics and Computer Science, Division for Electrical Engineering and Land Surveying.
    Christiansson, Anna-Karin
    University West, Department of Technology, Mathematics and Computer Science, Division for Electrical Engineering and Land Surveying.
    Eriksson, Kenneth
    University West, Department of Technology, Mathematics and Computer Science, Division for Mathematics and Sciences.
    Lennartson, Bengt
    University West, Department of Engineering Science, Division of Production Systems. Chalmers University of Technology.
    A new Camera Model and Algorithms for higher Accuracy and better Convergence in Vision-based Pose Calculations2006In: Mechatronics and Automation, Proceedings of the 2006 IEEE International Conference on, 2006, p. 194-199Conference paper (Refereed)
    Abstract [en]

    This paper presents novel strategies for better calibration and pose calculations of a system for determining the pose, i.e. position and orientation, of a camera. The system in question has a camera aimed to be placed on the hand of an industrial robot for welding, but is useful for any application with a need for measuring position and/or orientation. To calculate the pose of the camera circular reference points that can be recognized in the images are distributed in the working area. From their 2D image coordinates the 6D pose of the camera can be calculated. First the system is calibrated, i.e. the positions of the reference points and the camera parameters are determined. This is done by first taking images of the reference points from different locations, and then do a "total calibration" procedure to calculate the unknown parameters. For a specific system, called PosEye, it was concluded that the accuracy needs to be improved for welding applications. Also a method for making the calculations converge more easily, was needed. To meet these demands a new camera model is proposed, and three preprocessing calculation steps are presented. The new camera model increases accuracy by considering more distortion effects. The preprocessing steps give better initial values for more robust convergence of the algorithms and increased accuracy

  • 453.
    Ryberg, Anders
    et al.
    University West, Department of Technology, Mathematics and Computer Science, Division for Electrical Engineering and Land Surveying.
    Christiansson, Anna-Karin
    University West, Department of Technology, Mathematics and Computer Science, Division for Electrical Engineering and Land Surveying.
    Eriksson, Kenneth
    University West, Department of Technology, Mathematics and Computer Science, Division for Mathematics and Sciences.
    Lennartson, Bengt
    Chalmers University of Technology.
    A new Camera Model for Higher Accuracy Pose Calculations2006In: Industrial Electronics, 2006 IEEE International Symposium on Industrial Electronics, 2006, p. 2798-2802Conference paper (Refereed)
    Abstract [en]

    A position and orientation (pose) measurement system is being developed. The system, called PosEye, is based on a camera and by using the information in the image, the pose of the camera taking the image can be calculated. The system is aimed to be placed on an industrial robot for welding, but it is flexible and can also be used in many other applications. The accuracy has been measured, and it is concluded that the accuracy needs to be improved for welding applications. To make the pose measurement, reference points, that can be recognized in the image, are distributed in the working area. The positions of the reference points and the parameters in a camera model are initially computed automatically from sample images from a number of directions to the reference points. After this calibration, the pose can be calculated at each sample image. For high accuracy there is a need to have a camera model that takes into account a number of distortion effects, which are further developed in this paper. The new model is used to express an optimization cost function that can be used for both the pose calculation, and the extensive calibration, that determines camera parameters in the camera model and the positions of the reference points

  • 454.
    Ryberg, Anders
    et al.
    University West, Department of Engineering Science.
    Christiansson, Anna-Karin
    University West, Department of Engineering Science.
    Lennartson, Bengt
    University West, Department of Engineering Science, Division of Production Systems.
    Eriksson, Kenneth
    University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Camera Modelling and Calibration - with Applications2008In: Computer Vision / [ed] Zhihui, X., Vienna: I-Tech Education and Publishing , 2008, p. 303-332Chapter in book (Other academic)
  • 455.
    Ryberg, Anders
    et al.
    University West, Department of Engineering Science.
    Lennartson, Bengt
    University West, Department of Engineering Science, Division of Production Systems.
    Christiansson, Anna-Karin
    University West, Department of Engineering Science.
    Asplund, Lars
    Mälardalen University.
    Ericsson, Mikael
    University West, Department of Engineering Science.
    Analysis and evaluation of a general camera model2011In: Computer Vision and Image Understanding, ISSN 1077-3142, E-ISSN 1090-235X, Vol. 115, no 11, p. 1503-1515Article in journal (Refereed)
    Abstract [en]

    A versatile General Camera Model, GCM, has been developed, and is described in detail. The model is general in the sense that it can capture both fisheye and conventional as well as catadioptric cameras in a unified framework. The camera model includes efficient handling of non-central cameras as well as compensations for decentring distortion. A novel way of analysing radial distortion functions of camera models leads to a straightforward improvement of conventional models with respect to generality, accuracy and simplicity. Different camera models are experimentally compared for two cameras with conventional and fisheye lenses, and the results show that the overall performance is favourable for the GCM.

  • 456.
    Ryrå Landgren, Isabella
    University West, Department of Economics and IT, Division of Media and Design.
    Samspel i det berättartekniska: text, bild och effekter i musikvideor2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Music videos have under the last 50 years become entertainment in our society. Some are created to reflect feelings while others are a kind of showcase for the artist. There are also those based off of the lyrics and thus creates a short film or an illustration of the lyrics. Through the use of technologies such as visual effects is it possible to bring the impossible worlds and stories alive.Videos with these effects are the kind of videos I've been analyzing in this essay with the purposeto explore how much the visual effects affect the narration. To achieve this I have chosen to make a semiotic study focused on analysis and interpretations of five chosen music videos created during orafter the year 2000. CGI, slow-motion and metaphors are techniques I've been looking at and they have proved to contribute to how the story of the video is told and how it's understood. The interplay between image and text is another thing I've been studying and in the chosen videos it's been varying between interpretations and literal translation to the other.

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  • 457.
    Sargsyan, Michael
    et al.
    University West, Department of Economics and IT, Divison of Informatics.
    Saad, Robin
    University West, Department of Economics and IT, Divison of Informatics.
    Den digitala plånboken: aspekter som påverkar viljan att utnyttja mobila betalningar2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this paper, we explored how consumers want to use a digital wallet, thus mobile payment services. This study highlights aspects that affect individuals wishing to use mobile payments, thus the aim is to increase the understanding of issues that affect mobile payments. We used the qualitative method. Interviews were conducted with respondents after they tested up to deal with the cell phone in a couple of times with SEQR, WyWallet and PayEx. Scientific papers and books have been used as a basis for the study.

    We see that the major factors that emerged through our study is the simplicity, safety and user-friendliness that affect how consumers embrace this new payment method. We found that there are distinct differences between how different users use themselves out of mobile payments.

    The conclusions we can draw from our study is that there are distinct differences between how different users use themselves out of mobile payments. Depending on different individuals' perceptions regarding mobile payment services, how each one looks at mobile payments, our study led to compatibility, time savings, ease of use affects these individuals choose to use their services

  • 458.
    Sefer, Birhan
    et al.
    Division of Materials Science, Luleå University of Technology, Luleå, Sweden / Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain.
    Dobryden, Illia
    Division of Materials Science, Luleå University of Technology, Luleå, Sweden / Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Stockholm, Sweden.
    Almqvist, Nils
    Division of Materials Science, Luleå University of Technology, Luleå, Sweden.
    Pederson, Robert
    University West, Department of Engineering Science, Division of Welding Technology. Division of Materials Science, Luleå University of Technology, Luleå, Sweden / Research and Technology Centre, GKN Aerospace Engine Systems, Trollhättan, Sweden.
    Antti, Marta-Lena
    Division of Materials Science, Luleå University of Technology, Luleå, Sweden.
    Chemical Milling of Cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo Alloys in Hydrofluoric-Nitric Acid Solutions2017In: Corrosion, ISSN 0010-9312, E-ISSN 1938-159X, Vol. 73, no 4, p. 394-407Article in journal (Refereed)
    Abstract [en]

    The behavior of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo during chemical milling in hydrofluoric-nitric (HF-HNO3) acid solutions with 1:3 and 1:11 molar ratios was investigated using electrochemical and atomic force microscopy (AFM) techniques. Faster corrosion rate in 1:3 solutions was measured for Ti-6Al-4V than for Ti-6Al-2Sn-4Zr-2Mo, whereas in 1:11 solution Ti-6Al-2Sn-4Zr-2Mo exhibited higher corrosion rate. Scanning Kelvin probe force microscopy measurements revealed difference in the Volta potential between the α-laths and the β-layers in the Widmansttäten microstructure indicating operation of microgalvanic cells between the microconstituents when in contact with HF-HNO3 solution. The AFM topography measurements demonstrated faster corrosion of the α-laths compared to the β-layers, in both alloys. In 1:3 solutions, higher α/β height difference was measured in Ti-6Al-4V, whereas in 1:11 solution, the difference was higher in Ti-6Al-2Sn-4Zr-2Mo. The results revealed that the chemical milling behavior of the two investigated alloys is controlled by the microscopic corrosion behavior of the individual microconstituents.

  • 459.
    Seif, M. R.
    et al.
    Arak University of Technology, Department of Surveying Engineering, Arak, Iran.
    Sharifi, M. A.
    University of Tehran, School of Surveying and Geospatial Engineering, College of Engineering, Tehran, Iran.
    Eshagh, Mehdi
    University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Polynomial approximation for fast generation of associated Legendre functions2018In: Acta Geodaetica et Geophysica, ISSN 2213-5812, Vol. 53, no 2, p. 275-293Article in journal (Refereed)
    Abstract [en]

    Today high-speed computers have simplified many computational problems, but fast techniques and algorithms are still relevant. In this study, the Hermitian polynomial approximation is used for fast evaluation of the associated Legendre functions (ALFs). It has lots of applications in geodesy and geophysics. This method approximates the ALFs instead of computing them by recursive formulae and generate them several times faster. The approximated ALFs by the Newtonian polynomials are compared with Hermitian ones and their differences are discussed. Here, this approach is applied for computing a global geoid model point-wise from EGM08 to degree and order 2160 and in propagating the orbit of a low Earth orbiting satellite. Our numerical results show that the CPU-time decreases at least two times for orbit propagation, and five times for geoid computation comparing to the case where recursive formulae for generation of ALFs are used. The approximation error in the orbit computation is at a sub-millimeter level over two weeks and that the computed geoid 0.01 mm, with a maximum of 1 mm

  • 460.
    Serholt, Sofia
    et al.
    University of Gothenburg, Division of Learning, Communication and IT, Department of Applied IT, Gothenburg, Sweden.
    Pareto, Lena
    University West, School of Business, Economics and IT, Division of Media and Design.
    Ekström, Sara
    University West, School of Business, Economics and IT, Division of Media and Design.
    Ljungblad, Sara
    University of Gothenburg and Chalmers University of Technology, Division of Interaction Design, Department of Computer Science and Engineering,Gothenburg, Sweden.
    Trouble and Repair in Child-Robot Interaction: A Study of Complex Interactions With a Robot Tutee in a Primary School Classroom2020In: Frontiers in Robotics and AI, E-ISSN 2296-9144, Vol. 7, article id 46Article in journal (Refereed)
    Abstract [en]

     View references (31)Today, robots are studied and expected to be used in a range of social roles within classrooms. Yet, due to a number of limitations in social robots, robot interactions should be expected to occasionally suffer from troublesome situations and breakdowns. In this paper, we explore this issue by studying how children handle interaction trouble with a robot tutee in a classroom setting. The findings have implications not only for the design of robots, but also for evaluating their benefit in, and for, educational contexts. In this study, we conducted video analysis of children's group interactions with a robot tutee in a classroom setting, in order to explore the nature of these troubles in the wild. Within each group, children took turns acting as the primary interaction partner for the robot within the context of a mathematics game. Specifically, we examined what types of situations constitute trouble in these child–robot interactions, the strategies that individual children employ to cope with this trouble, as well as the strategies employed by other actors witnessing the trouble. By means of Interaction Analysis, we studied the video recordings of nine group interaction sessions (n = 33 children) in primary school grades 2 and 4. We found that sources of trouble related to the robot's social norm violations, which could be either active or passive. In terms of strategies, the children either persisted in their attempts at interacting with the robot by adapting their behavior in different ways, distanced themselves from the robot, or sought the help of present adults (i.e., a researcher in a teacher role, or an experimenter) or their peers (i.e., the child's classmates in each group). In terms of the witnessing actors, they addressed the trouble by providing guidance directed at the child interacting with the robot, or by intervening in the interaction. These findings reveal the unspoken rules by which children orient toward social robots, the complexities of child–robot interaction in the wild, and provide insights on children's perspectives and expectations of social robots in classroom contexts. © Copyright © 2020 Serholt, Pareto, Ekström and Ljungblad

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  • 461.
    Shubber, Mohammed
    et al.
    University West, Department of Economics and IT, Divison of Informatics.
    Östlind, Tomas
    University West, Department of Economics and IT, Divison of Informatics.
    Vårdpersonalens attityder till videoteknik vid samordnad vård och omsorgsplanering2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Västra Götalandsregionen have implemented video technology for all hospitals in the region to facilitate care planning meetings. There are templets available and the system is ready for use, although the system is not used that much like VGR wants. In this study, the problem has been examined by a qualitative research method, in which seven people with experience of care planning took part in semi-structured interviews. Before the interviews an interview guide was compiled composed of questions based on previous research and theoretical model The interviews were compiled and categorized on the basis of previous research and TAM2, that brought us to the results. The results of this study found that attitudes towards video technology among the hospital staff are positive. The results of this study found that attitudes towards video technology among the hospital staff are positive. On the other hand, the hospital staff experienced distance meetings to be shorter than face-to-face meetings and a number of participants that would otherwise not usually be able to participate now have the opportunity to do that. It gets even better for the patient because the patient receives information directly from all participants. The hospital staff does not experience distance meetings to be time-efficient for them comparatively with face-to-face meetings. There is a lack of available meeting rooms, the equipment must be prepared before the distance meeting and documentation must be carried out after a distance meeting, therefore distance meetings are time consuming for the hospital staff. Another influencing factor that we identified in this study is that the hospital staff felt that the training was not sufficient. The hospital staff would have preferred a more practical training to be able to feel comfortable in the use of video technology.

  • 462. Shubber, Mohammed
    et al.
    Östlind, Tomas
    University West, School of Business, Economics and IT, Divison of Informatics.
    Svensson, Ann
    University West, School of Business, Economics and IT, Divison of Informatics.
    Larsson, Lena
    Sahlgrenska Academy.
    Acceptance of Video Conferencing in Healthcare Planning in Hospitals2018In: AMCIS 2018 Proceedings, Association for Information Systems, 2018, p. 1-10Conference paper (Other academic)
    Abstract [en]

    Health information technology has become one of the most important resources for the development and improved efficiency of healthcare services. Frail elderly patients is a growing group of people that that requires healthcare. Different care providers have to participate in healthcare planning for frail elderly patients to ensure that the patient is provided with suitable care in his or her home. The use of video conferencing offers great potential for improving the efficiency and effectiveness of healthcare planning sessions, as well as reducing travel expenses. This paper reports from a qualitative study aiming at identifying and analyzing attitudes of hospital professionals, when using video conferencing for healthcare planning. The result indicates that the attitude toward using video conference tools is exclusively positive. The intention to use is high, due to the ability of the technology to make professionals ’ work more efficient, and that the technology can improve patient care.

  • 463.
    Shuyu, Bai
    University West, Department of Economics and IT, Divison of Informatics.
    Designing Software for Learning Swedish: Method to Improve Oral Swedish with Learning Theory2016Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In recent years, the number of immigrants in Sweden has been increasing rapidly. To help immigrants integrate into the local society, the Swedish government provides a free Swedish course to immigrants (SFI). This study gathers the learning experiences of the newcomers in SFI courses and relates their learning experiences to teaching theories. The aim of this research is applying teaching methods into language learning software to explore how to improve oral Swedish for SFI students.

    A qualitative method and inductive approach are used in this research. From the literature review, I created the theoretical framework which consisted of situational language teaching theory, motivation theory, previous research of mobile device and design theory. Qualitative data was collected by interview. 9 SFI students were interviewed with some questions which related to their own learning experience from SFI course and opinions about oral Swedish learning. Almost all respondents complained that SFI course is not provide enough opportunities for them to practice oral Swedish.

    Based on the SFI students’ individually learning experience, they require more opportunities to communicate with other in Swedish and learn oral language. life-related learning materials, making Swedish friends and appropriate reward system can help students improve oral Swedish and promote learning motivation. The author summarized four tentative findings about oral Swedish learning software. These findings were analyzed and discussed with learning theories and finally verified. Recommendations of the author were put forward in the end of this research.

  • 464.
    Sjöberg, Elin
    et al.
    University West, Department of Economics and IT, Division of Media and Design.
    Andersson, Martina
    University West, Department of Economics and IT, Division of Media and Design.
    Kan man vara vän med en vloggare?: En kvalitativ studie om följarnas sociala relation till vloggare2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study focuses on the relationship created and maintained between the video blogger (vlogger) and their followers in the production and consumption of video blogs (vlogs) on Youtube. Vlogs has contributed with a new form of autobiographical documentation that has engendered many positive effects on young people. Trough vlogs they get the possibility to feel togetherness, find like-minded and it has also brought courage to talk about rule-breaking subjects.

    We take a follower perspective where the interest lies in understanding what the vlogger means to the followers. With the study we are also exploring how the connection they feel to a vlogger can arise and how it is maintained through various forms of social exchanges.

    The empirical data were gathered through in-depth interviews with 6 experienced followers. They share their experiences and feelings about their vlog consumption and discuses their relationship with their favorite vlogger.

    Social penetration theory, Para social relationship theory helps us to understand how relationships can appear and develop. Our results, together with theories within public design, show that these theories are insufficient to explain the complex ties that are built through an asynchronous monologue with the asynchronous response from followers. The study also shows that the relationship between the followers and vlogger depends on its context. Factors affecting building relationships are mediated form, the common context, accessibility, participation, content and authenticity.

  • 465.
    Sjöberg, Lars E.
    et al.
    Royal Institute of Technology (KTH) Division of Geodesy and Geoinformatics.
    Eshagh, Mehdi
    Islamic Azad University, Shahr-e-Rey Branch Department of Surveying Tehran Iran.
    A theory on geoid modeling by spectral combination of data from satellite gravity gradiometry, terrestrial gravity and an Earth gravitational model2012In: Acta Geodaetica et Geophysica Hungarica, ISSN 1217-8977, E-ISSN 1587-1037, Vol. 47, no 1, p. 13-28Article in journal (Refereed)
    Abstract [en]

    In precise geoid modelling the combination of terrestrial gravity data and an Earth Gravitational Model (EGM) is standard. The proper combination of these data sets is of great importance, and spectral combination is one alternative utilized here. In this method data from satellite gravity gradiometry (SGG), terrestrial gravity and an EGM are combined in a least squares sense by minimizing the expected global mean square error. The spectral filtering process also allows the SGG data to be downward continued to the Earth's surface without solving a system of equations, which is likely to be ill-conditioned. Each practical formula is presented as a combination of one or two integral formulas and the harmonic series of the EGM.Numerical studies show that the kernels of the integral part of the geoid and gravity anomaly estimators approach zero at a spherical distance of about 5°. Also shown (by the expected root mean square errors) is the necessity to combine EGM08 with local data, such as terrestrial gravimetric data, and/or SGG data to attain the 1-cm accuracy in local geoid determination.

  • 466.
    Sjöberg, Lena
    University West, Department of Social and Behavioural Studies, Division for Educational Science and Languages.
    Bedömning av matematikkunskaper genom individuella utvecklingsplaner2017In: "Alla människors möte borde vara så": texter om bedömning : vänbok till Astrid Pettersson / [ed] Lisa Björklund Boistrup, Maria Nordlund & Eva Norén, Stockholm: Institutionen för matematikämnets och naturvetenskapsämnenas didaktik, Stockholm universitet , 2017, p. 80-93Chapter in book (Other academic)
  • 467.
    Sjölie, Daniel
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Badylak, Sebastian
    Falmouth University Falmouth, United Kingdom.
    Mind tricks for presence2019In: ACM International Conference Proceeding Series: 14th International Conference on the Foundations of Digital Games, FDG 2019, ACM Publications, 2019, article id 47Conference paper (Refereed)
    Abstract [en]

    As virtual and mixed reality (VR/MR) technology moves steadily towards general availability accessible descriptions of the surrounding theory is desirable. An initial focus on high-level concepts can provide common language for diverse teams, including artists, designers and engineers, helping them to quickly get a sense of basic principles and gain a familiarity with related research for further study. The concepts of synchronized reality and grounded simulation are introduced as helpful starting points for thinking about the design and development of mixed reality systems with optimal presence. This paper provides case studies where recent commercial VR applications are analyzed with the proposed principles in mind, in an attempt to illustrate to developers how to think about design of mixed reality games for optimal presence. © 2019 ACM.

  • 468.
    Spante, Maria
    University West, School of Business, Economics and IT, Divison of Informatics.
    Talking heads on the internet: social interaction in a multi-user voice based 3d graphical environment2011In: Proceedings of IRIS 2011.: TUCS Lecture Notes  No 15, October 2011 / [ed] Leino, Timo, 2011Conference paper (Refereed)
    Abstract [en]

    This paper reports on the finding from a qualitative study which investigated how long-term

    users of Traveler, a voice-based 3D online graphical environment launched in 1996 and still

    running, experience their social relations in relation to this specific cue-rich communication

    technology. The paper describes the subjective perceptions of the technology-mediated social

    experience such as the experience of social atmosphere in the community, of online

    friendship, of the meaning of the online social interaction in the users' offline lives. The paper

    also discusses the importance of these subjective experiences for motivation to regularly use

    Traveler. Conclusions drawn from the study suggest that it is crucial for users to have the

    ability to handle the technical functions of the program in order to function socially in the

    environment such as using the functions of the graphical program and using the voice channel

    in a social significant way. As a result, in order to have a positive and meaningful social

    experience in online it is critical for users to adapt to technical as well as to social factors.

    This process of adaptation is very important since the way functions are used was interpreted

    as social signals by users suggesting that social and technical aspects are intertwined in social

    practice. The paper describes this process of adaptation and the positive social effects of a

    successful adaptation. 

  • 469.
    Spante, Maria
    et al.
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Ericsson, Thommy
    Department of Applied IT, Chalmers University of Technology, Gothenburg.
    Sunnerstam, Maria
    University of Gothenburg, Gothenburg.
    Huang De-Voss, Cammy
    Virtual Labs, Stanford University, Stanford.
    Axelsson, Michael
    Department of Zoology, Gothenburg University, Gothenburg.
    Unlock the rigidity and design for flexibility2010In: US-China Education Review, ISSN 1548-6613, Vol. 7, no 11, p. 44-52Article in journal (Refereed)
    Abstract [en]

    This paper reports findings from a project implementing the VL (virtual labs) site featuring

    flash-based animations developed at Stanford University. The main conclusion in this paper stresses the need to

    design for flexibility and adaptability of interactive media to better suit the specific situation teachers encounter in

    their everyday work, in order to allow them to build their own audiovisual presentation kits based on various

    available resources. Ambitious but rigid visualization products might otherwise end up not being used at all. 

  • 470.
    Sprlak, Michal
    et al.
    University of West Bohemia, NTIS - New Technologies for the Information Society, Faculty of Applied Sciences, Plzeň, Czech Republic.
    Eshagh, Mehdi
    University West, Department of Engineering Science, Division of Computer, Electrical and Surveying Engineering.
    Local recovery of sub-crustal stress due to mantle convection from satellite-to-satellite tracking data2016In: Acta Geophysica, ISSN 1895-6572, E-ISSN 1895-7455, Vol. 64, no 4, p. 904-929Article in journal (Refereed)
    Abstract [en]

    Two integral transformations between the stress function, differentiation of which gives the meridian and prime vertical components of the sub-crustal stress due to mantle convection, and the satellite-to-satellite tracking (SST) data are presented in this article. In the first one, the SST data are the disturbing potential differences between twin-satellites and in the second one the line-of-sight (LOS) gravity disturbances. It is shown that the corresponding integral kernels are well-behaving and therefore suitable for inversion and recovery of the stress function from the SST data. Recovery of the stress function and the stress components is also tested in numerical experiments using simulated SST data. Numerical studies over the Himalayas show that inverting the disturbing potential differences leads to a smoother stress function than from inverting LOS gravity disturbances. Application of the presented integral formulae allows for recovery of the stress from the satellite mission GRACE and its planned successor. © 2016 Šprlak and Eshagh.

  • 471.
    Stanke, Maria Helena
    University West, Department of Economics and IT.
    Boktrailern: varför marknadsföra text med ljud och bild?2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this paper is to introduce the book trailer as a phenomenon and method of marketing. Similarities between the book trailer, the book cover and the movie trailer are examined to show how a "typical" book trailer looks and what functions it possibly has. The paper also explores the book trailer’s prospects of reaching different audiences in different age groups. It also points to difficulties in defining an audience. Young adult literature and the fantasy genre are linked to the book trailer and examples are given on how authors and publishers can establish relationships with readers through the Internet. General guidelines are given for what should be considered to appeal to as many potential readers as possible when a book trailer is being used or designed. The book trailer's ability to reach young, reluctant readers, who have given up on reading to the benefit of image based storytelling like movies and computer games, are explored. The conclusion highlights the advantages of promoting books with audio and video.

    Download full text (pdf)
    Fulltext_Boktrailern
  • 472.
    Stanković, Saša
    University West, Department of Engineering Science, Division of Computer, Electrical and Surveying Engineering.
    Monitor and manage system and application configuration files at kernel level in GNU/Linux2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study is to investigate if there is a way a computer can accurately and automatically react on altered configuration file(s) with a minimum of resource utilization and by what means the developer(s) of an application can perform a check of the altered configuration file for their application.

    In a typical GNU/Linux installation the configuration files are literally counted by the thousands, monitoring these files is a task that for the most part exceeds any system administrator's abilities. Each file has its own syntax that needs to be known by the administrator. Either one of these two tasks could give any system administrator nightmares concerning the difficulty level especially when both tasks are combined. The system administrator could attempt to automate the monitoring tasks together with the syntax checking.

    There are some tools in the repositories of each distribution for monitoring files but none that lets one monitor and take (predefined or user defined) actions based on what the file monitor reports, the type of file and its contents.

    A complete tool is not presented in this study, merely a proof of concept that monitoring and taking actions especially with version 2.6.13 (or newer) kernel of GNU/Linux with plugins are quite possible with relatively small computer resource.

    During this study some questions arose that are worth taking into consideration when a complete monitoring tool is to be developed, amongst others they are: add a trusted user, add both textual and graphical user interface, monitor more than one file path.

    This study was performed on GNU/Linux CentOS 6 distribution, all programming was done in BASH with an effort to minimize used/installed programs.

    Download full text (pdf)
    fulltext
  • 473.
    Sundararajan, Narasimman
    et al.
    Sultan Qaboos University, Department of Earth Sciences, Muscat, Oman.
    Eshagh, MehdiUniversity West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.Saibi, HakimUnited Arab Emirates University,Abu Dhabi, United Arab Emirates.Meghraoui, MustaphaUniversité de Strasbourg, Strasbourg, France.Al-Garni, MansourKing Abdulaziz University, Jeddah, Saudi Arabia.Giroux, BernardCentre Eau Terre Environnement,Institut National de la Recherche Scientifique, Québec, Canada.
    On Significant Applications of Geophysical Methods: Proceedings of the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 20182019Collection (editor) (Other academic)
    Abstract [en]

    This edited volume is based on the best papers accepted for presentation during the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 2018. This special volume is of interest to all researchers practicing geosphysicists/seismologists, students of PG and UG in the fields of multifaceted Geoscience. Major applications with relevant illustrations presented in the volume are from Middle East. And therefore, this book no doubt would serve as a reference guide to all geoscientists and students in the broad field of Earth Science. This volume covers significant applications of gravity and magnetic methods, electrical and electromagnetic methods, refraction and reflection seismic methods besides a large number of study on earthquakes, tectonics and geological settings etc. The salient features of this volume are the interpretation and modeling of geophysical data of different nature

  • 474.
    Suopanki, Peter
    University West, Department of Engineering Science.
    Memory management in a large project developed in C/C++2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis has been a study in memory management in C/C++, with practical work in finding and solving memory leaks in a large project. A background theory of C++ and memory management has been presented along with the memory problems that can arise in development in C/C++. Several topics in minimizing memory problems with using inbuilt C++ libraries and the Boost libraries have also been presented. There is also an overview of the PLC-Opt 2.2 Beta application and its inner workings. The method was to learn all about memory management and solve the memory leaks in PLC-Opt. The results showed that there were approximately 28.000 instances of memory leaks and the end result showed that approximately 700 instances of leaks remained unresolved. A list with clues of the remaining memory leaks was provided in the Future work chapter.

    Download full text (pdf)
    fulltext
  • 475.
    Svanberg, Pia
    et al.
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Pareto, Lena
    University West, School of Business, Economics and IT, Division of Media Production. University West, School of Business, Economics and IT, Division of Media and Design.
    Lundh Snis, Ulrika
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Incentives for Participation in Organised Business Networks2009In: Proceedings of the 32nd Information Systems Research Seminar in Scandinavia, IRIS 32: Inclusive Design / [ed] Molka-Danielsen, J., Molde University College , 2009Conference paper (Refereed)
    Abstract [en]

    Much research shows several implications that business collaboration and knowledge exchange takes place across several inter-organisational network constellations. As organisational boundaries become inter-connected into networks of people and resources there is a need to consider the value and effects of such non-traditional networking businesses. This paper portrays how business managers perceive the role of an organised business network and what values cross-company business networking generate. 16 in-depth interviews form the foundations of this preliminary findings. The research question is: Which are the incentives for participation in business networks? The aim is to better understand incentives and values for participation in order to design and manage the business network organisation more effectively. Our argument is that the specifics of incentives and preconceptions of business networking have big impact on how valuable the actual effects of such network participation are. From this study we also discuss implications of how the network can facilitate and coordinate for increased business opportunities.

  • 476.
    Svensson, Ann
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Development of the Road Carriers Cluster in the Western Region of Sweden2007In: Uddevalla Symposium Tenth Anniversary 2007: Institutions for Knowledge Generation and Knowledge Flows - Building Innovative Capabilities for Regions: Revised papers presented at the 10th Uddevalla Symposium, 14-16 June, 2007, University West, Uddevalla, Sweden / [ed] Iréne Johansson, Trollhättan: University West , 2007, p. 701-712Conference paper (Refereed)
    Abstract [en]

    The road carriers business in West Sweden is described as a cluster of the Swedish business world. This cluster has been exposed to great competitiveness and deregulation during about the last ten years. The road carrier cluster has been analysed by Porter´s diamond model. The preconditions for the successful growth of the cluster are presented. Especially the road carrier cluster´s opportunities and limitations have been taken into consideration. The study has been performed as a literature study, complemented by studies of magazines in the branch. Furthermore three interviews have been performed of an owner of a road carrier firm. One day has been spent as carrying out an ethnographical study as a driver of a trailer truck. The conclusion of the study is that there are many factors influencing the development of the road carriers business. The road carriers business furthermore has a strong influence from the general business cycle.

  • 477.
    Svensson, Ann
    University West, School of Business, Economics and IT, Divison of Informatics.
    How to Evaluate Collaboration within Research and Innovation2018In: Proceedings Cross-Cultural Business Conference 2018 / [ed] Margarethe Überwimmer, Robert Füreder, Martina Gaisch, Shaker Verlag, 2018, p. 319-327Conference paper (Other academic)
    Abstract [en]

    To improve and strengthen regional development is often subject of political decisions. This is thesituation within the European Union, to increase innovation in SMEs. SMEs need access to knowledge,competence and collaboration, in order to increase their opportunities to develop competitiveness inproducts higher up in the value chain. The increasing rate of change in society also creates needs ofdecreasing the time from knowledge development to ready products to the market. Ongoing evaluationis prevalent in many research and development projects today in order to follow up the intended results.The ongoing evaluation could contribute to increase the efficiency and effectiveness of a specificinnovation project by highlight areas of improvement and needs of development. The purpose of thispaper is to analyze how collaboration within research and innovation can be evaluated, using a specificinnovation project as an example. Qualitative methods have been used for the data collection andanalysis, based on documents, interviews and participation in various activities. An intervention theory iscreated, as interpreted and structured based on information from documents and interviews. Theintervention theory should be further refined, and could be used to select important aspects of theinnovation project for the further evaluation. The intervention theory can be used to evaluate the causesand effects, and if the innovation project is reaching its intended final achievements and results.

  • 478.
    Svensson, Ann
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Instructional-design theories applied on a web-based learning application2008In: Proceedings - International Conference on Information Technology: New Generations, ITNG 2008,  Fifth International Conference on7-9 April 2008, 2008, p. 845-850Conference paper (Other academic)
  • 479.
    Svensson, Ann
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Utvärdering av nätbaserad utbildning 2007In: Högskoleverkets kvalitetskonferens, 10-11 oktober, 2007., Stockholm: Högskoleverket , 2007Conference paper (Other academic)
  • 480.
    Svensson, Ann
    University West, Department of Economics and IT, Divison of Informatics.
    Voluntary Disclosure of Information on Intangibles in Corporate Annual Reports2014In: Global Review of Accounting and Finance, ISSN 1838-5915, Vol. 4, no 1, p. 133-147Article in journal (Other academic)
  • 481.
    Svensson, Ann
    et al.
    University West, Department of Economics and IT, Divison of Informatics.
    Forssell Eriksson, G.
    Ytterbyskolan, Kungälv.
    Conditions for participation within synchronous online collaborative learning2014In: 20th Americas Conference on Information Systems, AMCIS 2014, 2014Conference paper (Refereed)
    Abstract [en]

    Interactive and communicative situations within social environments are prerequisites for learning in collaboration. Synchronous communication offers the opportunity to actively engage students in collaborative learning activities. This paper is based on an action research conducted within a learning project including synchronous communication between students in lower secondary school. The students collaborate in a cross-border project involving Danish, Norwegian and Swedish students. The aim of the paper is to analyse the conditions for participation in synchronous online learning. collaborative learning. The findings are derived from the empirical study within a three-part learning project using synchronous online communication. The conclusion is that the conditions for participation in synchronous online learning are authenticity, motivation, confidence, preparation and teacher engagement.

  • 482.
    Svensson, Ann
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Forssell Eriksson, Gunilla
    Ytterbyskolan Göteborg.
    Inter-professional Learning for Teaching: Using Digital Tools2014In: Proceedings of 15th European Conference on Knowledge Management, Academic Conferences and Publishing International Limited , 2014, p. 946-953Conference paper (Other academic)
    Abstract [en]

    The importance of inter‐professional learning and knowledge integra‐tion for teaching is increasing as the use of digital tools will challenge the peda‐gogical conditions within the school context. It is the responsibility of schools thatthe students can use modern technology as a tool for searching knowledge, forcommunication, as well as for creation and learning. Therefore, teachers often arechallenged in integrating digital tools in their pedagogical practices. It has beenobvious that the implementation of new digital tools in the classrooms has causedsome uncertainty within the school professions. Thus, professionals working inschools need to collaborate, interact and communicate with other professionalsin order to develop their knowledge within their work practice. Communities ofpractice are sharing a specific practice and can create a common understandingand sense‐making. Digital tools have occurred as resources for interaction andcollaboration at different locations and times, also to a great extent facilitatinginter‐professional work and learning. This paper is based on an action‐based qual‐itative study of a Nordic education project, with focus on the inter‐professionalcollaboration and the use of digital tools. In the project different professions asteachers, principals, IT‐pedagogues, IT‐technicians as well as researchers haveparticipated. The aim of this paper is to analyze conditions for how to enable in‐ter‐professional learning and knowledge integration through various digital tools.Knowledge acquired collectively is actually negotiated and accepted within acommunity of practice. To collaboratively produce common teaching cases, obvi‐ously challenges the creation of a system of collective knowledge. Challenges arealso related to the inter‐professional processes of learning as different profes‐sions are acting in different contexts. Trust between different individuals and pro‐fessions seems to be an important aspect together with participation in the com‐munities of practice for inter‐professional learning and knowledge integratingusing various digital tools in a virtual environment

  • 483.
    Svensson, Ann
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Hedman, E.
    NU Healthcare, Sweden.
    Knowledge management for operations management within health care2018In: Proceedings of the ... European conference on knowledge management, ISSN 2048-8971, E-ISSN 2048-8963, Vol. 2, p. 847-854Article in journal (Refereed)
    Abstract [en]

    The aging population of the western world poses a medical challenge for the society of today and of the future. In hospitals, healthcare professionals manage health care with the objective to provide care of high quality using the limited available resources. The decision-making in production and capacity planning decisions requires coordination and management of knowledge in different hierarchical levels and in different time-frames. Thus, this knowledge management is also needed between various health care services within a hospital, as well as with other healthcare providers, at a horizontal level. This paper is based on a qualitative study, conducted as a case study at a hospital in western Sweden. Eleven managers together with their production controllers were interviewed. This paper aims to analyze the challenges the health care at the hospital face related to the knowledge management in the production and capacity planning and control of activities performed. The difficulties found refers to limitations in knowledge management according to three different themes identified. These themes are the influence of political decisions, coordination and participation, and methods and IT-systems. 

  • 484.
    Svensson, Ann
    et al.
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Johansson, Caroline
    Lund University.
    Growth of Ecological Production in the Agricultural Sector2008In: Uddevalla Symposium 2008: Spatial Dispersed Production and Network Governance : Revised papers presented at the 11th Uddevalla Symposium, 15-17 May, 2008, Kyoto, Japan  / [ed] Iréne Bernhard, Trollhättan: University West , 2008, p. 359-372Conference paper (Refereed)
    Abstract [en]

    The agricultural sector in Sweden has been experienced rather large changes through the last twenty to thirty years. The ecological production of foodstuff has increased during the last years. The purpose of this paper is to give an overview of the marketing strategies performed by the ecological farmers and its cluster. Then the paper will analyse and discuss how sucessful the marketing strategies have been, in comparison to the marketing strategies theories. There is now a cultural shift in food consuming, where more people choose ecological produced KRAV-foodstuff. It depends on that people has been more aware of environmental- and climate issues. Consumers chose to buy ecological products, as KRAV-products, because their values accord with a good environment, good caring of animals, and also because of health and social responsibility. In the marketing communication process it is important to inform and make potential customers aware of a firm´s or an organization´s offering. Therefore for example the Internet is a fruitful tool to convey different types of messages to the customers. We believe that the consumption of ecological products could increase more and faster if there is effective and lasting environment marketing. Until now there has been some restrictions of contracs for ecological farmers.

  • 485.
    Svensson, Ann
    et al.
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Lundh Snis, Ulrika
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Svanberg, Pia
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Svensson, Lars
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Attitudes to information technology in health care professions2009In: The 17th European Conference on Information Systems, Verona, june 8-10, 2009., 2009Conference paper (Other academic)
    Abstract [en]

    The purpose of this paper is to explore attitudes towards IT among various categories of health care staff; health care professions. We will identify problem areas that may be the reasons for why different attitudes among different professions at a healthcare organisation exist, and subsequently we will analyse how this may have impact on how to make sense of IT use. The research question is: What factors may explain differences regarding attitudes to IT among different professions in a health care organisation?

    The paper reports from a particular study of the “NU” healthcare organisation in west Sweden. The results reveal two main problem areas: i) the infrastructural and; ii) the socio-organisational. These are discussed as analytical implications for bridging the gaps between different professions in health care organisations.

  • 486.
    Svensson, Bo
    et al.
    University West, Department of Engineering Science, Division of Automation and Computer Engineering.
    Danielsson, Fredrik
    University West, Department of Engineering Science, Division of Automation and Computer Engineering.
    Improving Performance in Flexible Manufacturing by a P-sop Approach2014In: Proceedings of the 6th International Swedish Production Symposium 2014 / [ed] Stahre, Johan, Johansson, Björn & Björkman, Mats, 2014, p. 1-8Conference paper (Refereed)
    Abstract [en]

    This paper present a Part oriented Sequence of Operation (P-SOP) approach that address flexibility, robustness and deployment in manufacturing cells up to plant level. A P-SOP description language has been formulated where the control strategy based on actual circumstances easily can be defined. Furthermore, a P-SOP multi-agent generator has been created that compiles the strategy description to multi-agents that control the manufacturing. Deadlock free IEC 61131-3 PLC code are directly generated from the description language. The code is not optimised for a specific scenario since the general description contains all possible routing paths and all resources available.

  • 487.
    Svensson, Bo
    et al.
    University West, Department of Engineering Science, Division of Automation Systems.
    Danielsson, Fredrik
    University West, Department of Engineering Science, Division of Automation Systems.
    P-SOP -€“ A multi-agent based control approach for flexible and robust manufacturing2015In: Robotics and Computer-Integrated Manufacturing, ISSN 0736-5845, E-ISSN 1879-2537, Vol. 36, p. 109-118, article id 1301Article in journal (Refereed)
    Abstract [en]

    In a truly flexible manufacturing system the description of the control strategy must be updated every day. Hence, a new way to handle changes in the environment down to control system deployment and production is required. This paper presents a novel approach, based on P-SOP, to handle multi-agent based control and verification. The P-SOP approach addresses flexibility, robustness and deployment in the best possible manner with the least waste of time and effort. P-SOP includes a description language where the control strategy based on actual circumstances easily can be defined. Based on the description multi-agents, to control the manufacturing, are automatically generated. An industrial advantage is that the multi-agent generator creates IEC 61131-3 PLC code that can be executed on standard PLC’s. This feature eliminates the need for experts in PLC programming and reduce deployment time to become more efficient. Hence, this flexibility enables small series down to one off production in a competitive way. With multi-agent control it is also possible to handle rebalancing due to market changes, scheduling of available humans, introduction of new part types, and rerouting due to a machine break down or planned service. The generated agents are not optimised for a final solution with specific timings. All decisions are made on-line and the generated solution adapts to the circumstances that arise. With the P-SOP multi-agents it is easy to manually remove or introduce parts to the manufacturing cell without disturbing the system, e.g. for manually random inspections, removal of parts due to restart. The formulated description language and the multi-agent generator has been successfully tested and evaluated in an industrial environment.

  • 488.
    Svensson, Jonas
    et al.
    University West, Department of Economics and IT, Division of Computer Engineering.
    Bergman, Joel
    University West, Department of Economics and IT, Division of Computer Engineering.
    Utveckling av en metod för att implementera IPv6 i en existerande nätverksmiljö2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report began with the fact that many companies and organizations today do not have any or little knowledge about IPv6 and what it means, nor do they know how to implement it. At the time of writing there were no complete method for how an analysis of a network were done, what was important to think on and which techniques were available.

    To ease future transitions to IPv6, we decided to develop a general method that a user could follow step by step, with instructions for what to think on at each step. The method also gives examples on how the user could do an analysis and examinations, and it eventually leads to a solution based on their needs. The method answers the question "what does a company need to do to be able to implement IPv6 in an already existing network?"

    The transition to IPv6 is happening and many techniques is still in development. To be able to present solutions that work with different needs, research in IP version four, version six and in transfer techniques were done as well.

    A set of transfer techniques was chosen and set up in a lab network where IPv6 functionality was verified. To develop a method that covered most of the common scenarios, the question were discussed with Empir AB, a company that works with IT solutions that hosts their own services. Their network was analyzed and the result was the foundation for the method.

    Since all techniques in the method were tested in the lab network, the IPv6 functionality was verified by testing different services over the network. The tests showed that it was possible to implement IPv6 after a step by step model. The result of this work can be used to initiate and follow through with a transition to IPv6 since the user have a method to follow, recommendations to what needs to be done and proposed solutions that can be implemented after instructions.

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  • 489.
    Svensson, Lars
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Me, myself and Genre : Bridging IS Design Theory and Distance Educational Practice withTechno-Pedagogical Genres 2006In: 2nd International Workshop on Digital Genre, Halmstad, June 15-16, 2006, Halmstad University , 2006Conference paper (Other academic)
  • 490.
    Svensson, Lars
    et al.
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Bernheim, Bo-Göran
    Volvo Aero.
    Lundin, Johan
    Gothenburg university.
    Lundh Snis, Ulrika
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Pareto, Lena
    University West, School of Business, Economics and IT, Division of Media Production. University West, School of Business, Economics and IT, Division of Media and Design.
    Supporting Competent Acting in the new Workplace2008In: Proceedings of E-Learn2008: World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education / [ed] Curtis J. Bonk, Mimi Miyoung Lee & Tom Reynolds, Las Vegas, 2008, p. 3934-3941Conference paper (Refereed)
  • 491.
    Svensson, Lars
    et al.
    University West, School of Business, Economics and IT, Divison of Informatics.
    Nilsson, Stefan
    University West, School of Business, Economics and IT, Division of Media and Design.
    Re-thinking the LMS: Designing for Engaged Collaboration2014In: Proceedings of Society for Information Technology & Teacher Education International Conference 2014 / [ed] M. Searson & M. Ochoa, Chesapeake, VA: AACE , 2014, p. 1702-1707Conference paper (Refereed)
    Abstract [en]

    While there has been extensive research done on technology supporting communication and interaction in online higher education, this research focus on the potential of new web development tools for designing educational technologies. With the recent advent and maturity of the HTML5-standard together with CSS3 and advanced javascript libraries such as jQuery andNode.js developers now have access to tools enabling them to create dynamic, web-based systemssupporting rich social interaction & collaboration between students & educators with features that were previously only available in proprietary applications. This paper reports from an ongoingresearch project utilizing a design research approach aimed at creating and evaluating such a tool.

  • 492.
    Svensson, Lars
    et al.
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Östlund, Christian
    University West, Department of Economics and IT, Division of Computer Science and Informatics.
    Framing work-integrated e-learning with techno-pedagogical genres2007In: Journal of Educational Technology & Society, ISSN 1176-3647, E-ISSN 1436-4522, Vol. 10, no 4, p. 39-48Article in journal (Refereed)
  • 493.
    Svensson, M
    et al.
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Ydenius, A
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    Christiernin, Linn
    University West, School of Business, Economics and IT, Division of Computer Science and Informatics.
    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.
    UML: How to model user interfaces - An exploratory study2009In: Proceedings of the IADIS International Conference Informatics 2009, Part of the IADIS Multi Conference on Computer Science and Information Systems, MCCSIS 2009, Algarve, 2009, p. 59-66Conference paper (Other (popular science, discussion, etc.))
    Abstract [en]

    When creating software, people from many different areas are involved. To make them work efficiently together they need to communicate but communication requires a common language and common understanding. The Unified Modeling Language (UML) is often used as a common ground for understanding when modeling and designing software products. However, after practically working with many large projects we have found UML to have shortcomings in the area of modeling Graphical User Interface (GUI). There are many other ways to model GUIs but it could be beneficial to use a modeling method that the more technical developers are familiar with and also beneficial to be able to put in the interface into the framework of UML when it comes to drawing applications and code generation. In this study we first of all have investigated the possibility of adding GUI design to UML and then we have explored different solutions for what a GUI UML-diagram could look like and what problems there are with diagrams when it comes to visualizing objects. We have then put forward an idea for a GUI diagram or an UML extension; a graphical element diagram, and discussed its benefits and drawbacks. © 2009 IADIS.

  • 494.
    Svensson, Martin
    et al.
    University West, School of Business, Economics and IT.
    Christiernin-Gustafsson, Linn
    University West, School of Business, Economics and IT, Division of 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.
    GED: A Graphical Element Diagram: UML for Interface development2010In: Proceedings of the 2010 International Conference on Software Engineering Research & Practice, SERP 2010 / [ed] Hamid R. Arabnia, Hassan Reza, Leonidas Deligiannidis, Juan Jose Cuadrado-Gallego, Vincent Schmidt, Ashu M. G. Solo, Las Vegas: CSREA Press , 2010, p. 38-44Conference paper (Refereed)
  • 495.
    Swenman, Patrick
    University West, Department of Economics and IT, Division of Media and Design.
    UGV - Kvalité räknas: En undersökning om skillnader mellan användargenererade videos på Youtube2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this thesis we analyzes the 75 largest user generated videos (UGV) at Youtube. The goal is to be able to place videos into categories by identifying differences and similarities between different videos. By doing this we'll be able to calculate if there is a difference in exposure value between different kind of videos. Our findings indicates that videos with a higher production quality may have a greater chance of being shared.

  • 496.
    Tallvid, Martin
    et al.
    Göteborgs universitet, Avdelningen för lärande, kommunikation och IT.
    Lundin, Johan
    Göteborgs universitet, Institutionen för tillämpad IT.
    Svensson, Lars
    University West, School of Business, Economics and IT, Divison of Informatics.
    Lindström, Berner
    University West, Department of Social and Behavioural Studies, Division for Educational Science and Languages. Göteborgs universitet.
    Exploring the Relationship between Sanctioned and Unsanctioned Laptop use in a 1:1 Classroom2015In: Educational Technology & Society, ISSN 1176-3647, E-ISSN 1436-4522, Vol. 18, no 1, p. 237-249Article in journal (Refereed)
    Abstract [en]

    The research reported in this article explores and discusses students' use of laptops in a 1:1 setting. A problem experienced by teachers is that the laptops are possible distractors and tempt students to engage in use that is not in line with the teacher's idea of what would be suitable in relation to the current assignment. Three annual surveys in combination with interviews and classroom observations were carried out in two Swedish secondary schools during a phase of the implementation of 1:1-laptops. The results show how that there is not a reciprocal correlation between sanctioned laptop use and unsanctioned laptop use. The findings also show that the students' unsanctioned use of laptops was relatively high, but stable throughout the duration of the three years. Furthermore, results show that the number of students who do not game or chat at all has increased every year. The findings have implications for the discussions concerning the use of personal laptops in secondary schools.

  • 497.
    Tano, Ingrid
    University West, Department of Engineering Science, Division of Natural Sciences and Electrical and Surveying Engineering. University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
    Contributions to multivariate process capability indices2012Licentiate thesis, comprehensive summary (Other academic)
  • 498.
    Tano, Ingrid
    et al.
    University West, Department of Engineering Science, Division of Natural Sciences and Electrical and Surveying Engineering.
    Vännman, Kerstin
    Luleå Tekniska universitet.
    A multivariate process capability index based on the first principal component only2013In: Quality and Reliability Engineering International, ISSN 0748-8017, E-ISSN 1099-1638, Vol. 29, no 7, p. 987-1003Article in journal (Refereed)
  • 499.
    Tano, Ingrid
    et al.
    University West, Department of Engineering Science, Division of Computer, Electrical and Surveying Engineering.
    Vännman, Kerstin
    Umeå universitet, Umeå, Sverige.
    Comparing Confidence Intervals for Multivariate Process capability Indices2012In: Quality and Reliability Engineering International, ISSN 0748-8017, E-ISSN 1099-1638, Vol. 28, no 4, p. 481-495Article in journal (Refereed)
    Abstract [en]

    Multivariate process capability indices (MPCIs) are needed for process capability analysis when the quality of a process is determined by several univariate quality characteristics that are correlated. There are several different MPCIs described in the literature, but confidence intervals have been derived for only a handful of these. In practice, the conclusion about process capability must be drawn from a random sample. Hence, confidence intervals or tests for MPCIs are important. With a case study as a start and under the assumption of multivariate normality, we review and compare four different available methods for calculating confidence intervals of MPCIs that generalize the univariate index Cp. Two of the methods are based on the ratio of a tolerance region to a process region, and two are based on the principal component analysis. For two of the methods, we derive approximate confidence intervals, which are easy to calculate and can be used for moderate sample sizes. We discuss issues that need to be solved before the studied methods can be applied more generally in practice. For instance, three of the methods have approximate confidence levels only, but no investigation has been carried out on how good these approximations are. Furthermore, we highlight the problem with the correspondence between the index value and the probability of nonconformance. We also elucidate a major drawback with the existing MPCIs on the basis of the principal component analysis. Our investigation shows the need for more research to obtain an MPCI with confidence interval such that conclusions about the process capability can be drawn at a known confidence level and that a stated value of the MPCI limits the probability of nonconformance in a known way. 

  • 500.
    Tano, Ingrid
    et al.
    University West, Department of Engineering Science, Division of Land Surveying and Mathematics.
    Vännman, Kerstin
    Umeå Universitet & Luleå tekniska universitet & Högskolan Väst.
    Multivariate Process Capability Indices—A New Principal Component Analysis Approach2011In: ENBIS1- Coimbra, Portogal, 2011Conference paper (Refereed)
    Abstract [en]

    Often the quality of a process is determined by several correlated quality characteristics. In such cases the quality characteristic should be treated as a vector and a number of different multivariate process capability indices (MPCI:s) have been developed for such a situation. One of the existing MPCIs described in the literature is based on principal component analysis (PCA). The idea behind this MPCI is to do a PCA and consider only the first few principle components that explain the main part of the variability. Then one of the well-known univariate process capability indices is applied to each selected principle component and thereafter the univariate process capability indices for the selected principle components are combined to one MPCI. In order define this MPCI the tolerance region for the quality characteristic vector is transformed to a separate specification interval for each principal component. Recently it was shown that this transformation of the tolerance region into separate specification intervals is done in an improper way. And it is far from obvious how to obtain the individual specification limits for each selected principal component when the transformation is properly made. This problem gets complicated for 2 principal components and even worse for more than 2 principal components. We propose a new method based on PCA that circumvent these difficulties for the case when the tolerance region is a hyper-rectangular. This method first transforms the original data in a suitable way. Then PCA is done on the transformed data and it is shown that only the first principal component is needed to deem a process as capable or not at a stated significance level. Hence, a multivariate situation is transferred into a univariate situation and well-known theory for univariate process capability indices can be used to draw conclusions about the process capability. The properties of this method are investigated through a simulation study.

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