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  • 46501.
    Wingkvist, Anna
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Understanding Scalability and Sustainability in Mobile Learning: A Systems Development Framework2009Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    The rapid development of mobile technologies combined with access to content almost everywhere and every time allows people to experience new situations regarding learning in a wide variety of situations. Mobile learning brings the promise of learning "on the move" by allowing learners to take control over time and space, thus making learning "more natural". The field of mobile learning has rapidly evolved in the last ten years and many initiatives have been conducted worldwide. However, research results indicate that few of these efforts have produced any lasting outcomes. It is evident that these initiatives are faced with inherently complex settings and that the outcomes might not live up to their prom- ises; will not be adopted and, hence, will not become sustainable.

    Many of the complex issues faced by mobile learning initiatives are similar to those faced by the development of information systems. This latest statement suggests that an improved development practice might hold one piece of the key to sustainable mobile learning. The aim of the research presented in this thesis is to investigate the relation between information systems development practice and mobile learning development; and if methods and models originated within information systems development can be used to strengthen mobile learning initiatives. In order to investigate this relation, this thesis studies several mobile learning initiatives with a particular focus on how and why development and research was initiated and conducted. Concepts found in mobile learning practices are strengthened by providing a theoretical perspective with roots in information systems development. The outcomes of the studies presented in this thesis indicate that the development practice of mobile learning initiatives can be redefined in order to achieve more sustainable results.

    The core of this thesis consists of eight peer-reviewed scientific publications that have been presented at different international conferences. Five of the papers explore the field of mobile learning and its practice while the other three publications present the central ideas that serve as the basis for the proposed framework, how it has been developed, and the motivations behind its creation.

    The main contribution of this thesis is a novel development framework aimed at researchers and practitioners in the field of mobile learning. The framework defines the life-cycle of a mobile learning initiative and identifies the importance of emphasizing the concepts of scalability and sustainability during the development process. This may be a way to reduce the complexity inherent to mobile learning and its settings, and a means to improve the outcomes of coming mobile learning initiatives in terms of long lasting usable results.

  • 46502.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Alexander, Jason
    Was it Pod Worthy?2007Ingår i: Proceedings of 30th Information Systems Research Seminar in Scandinavia, Department of Computer Sciences, University of Tampere, Finland , 2007, s. 10-Konferensbidrag (Refereegranskat)
    Abstract [en]

    Students and teaching staff in higher education are constantly looking for new tools to help them study and teach more efficiently. The University of Canterbury began ProjectPodcast to introduce podcasting to a number of subjects as an add-on to the current course curriculum. Podcasting is being used to enhance mobile learning and enthuse both students and lecturers. Previous podcasting evaluations show that there exists a need for both audio content from lectures, or so called “LectureCasts” as well as supplementary material or “Sup!Casts”. In this study, the evaluation of ProjectPodcast will be performed in-house. We have chosen an established six step methodology to avoid criticisms that often arise when evaluations are performed by internal members of the project. The evaluation is aimed at both the student population as well as the lecturing staff in order to gain knowledge about their impressions of podcasting. Prior podcasting

    surveys have received low response rates, due to the choice of time, location and medium. Hence, our evaluation plan has been created with the goal of encouraging feedback from students and lecturers. In this paper we present our preparatory plan for evaluating ProjectPodcast.

  • 46503.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Bell, Tim
    Canterbury University, Christchurch, New Zealand.
    Cockburn, Andy
    Canterbury University, Christchurch, New Zealand.
    Green, Richard
    Canterbury University, Christchurch, New Zealand.
    Podcasts as a Supplement in Tertiary Education: An Experiment With Two Computer Science Courses2009Ingår i: Podcasting in Education / [ed] Mahashabde, K.E., India: ICFAI Books , 2009, 1Kapitel i bok, del av antologi (Övrigt vetenskapligt)
    Abstract [en]

    The current generation of undergraduate students are enthusiastic adopters of mobile technologies, and some of these technologies offers significant opportunities for broadening the times, places and manner that students study and learn. One of these is podcasting, which greatly eases distribution of content to portable devices, giving the students opportunity for anytime, anywhere learning. However, most educational podcasts do not take advantage of the potential of podcasting. In this paper we discuss the issues surrounding the use of podcasting for higher education. We report our experiences using podcasts to supplement two undergraduate Computer Science courses, and we provide tips for others considering the use of podcasts in education.

  • 46504.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Uppsala University.
    A Framework to Guide and Structure the Development Process of Mobile Learning Initiatives2010Ingår i: Proceedings of the 9th World Conference on Mobile Learning, 2010, s. 184-191Konferensbidrag (Refereegranskat)
    Abstract [en]

    Mobile learning has yet to move on from small-scale trials to sustained deployment. One reason for this is the highly complex and multi-disciplinary setting that the initiatives operate within. They must deal with a wide range of issues such as software, hardware, people, learning, organizations and so on. At the same time, there is little support. Few frameworks to guide the development process exist. This article presents one such framework that was developed based on theories from software and systems development as well as practical experience from mobile learning. The framework divides the development into four Areas of Concern and introduces a life cycle of the mobile learning initiative. It further offers means to guide the development of the initiative and to find key issues that needs to be addressed in order to achieve sustainability. The framework presents a holistic view of mobile learning and is designed as an aid to all practitioners in mobile learning, no matter their background.

     

  • 46505.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Ericsson, Morgan
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    A Meta-model Describing the Development Process of Mobile Learning2009Ingår i: Advances in Web Based Learning: – ICWL 2009 / [ed] Spaniol, M., Li, Q., Klamma, R., and Lau, R., Berlin / Heidelberg: Springer , 2009, s. 454-463Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    This paper presents a meta-model to describe the development process of mobile learning initiatives. These initiatives are often small scale trials that are not integrated in the intended setting, but carried out outside of the setting. This results in sustainability issues, i.e., problems to integrate the results of the initiative as learning aids. In order to address the sustainability issues, and in turn help to understand the scaling process, a meta-model is introduced. This meta-model divides the development into four areas of concern, and the life cycle of any mobile learning initiative into four stages. The meta-model was developed by analyzing and describing how a podcasting initiative was developed, and is currently being evaluated as a tool to both describe and evaluate mobile learning initiatives. The meta-model was developed based on a mobile learning initiative, but the meta-model itself is extendible to other forms of technology-enhanced learning.

  • 46506. Wingkvist, Anna
    et al.
    Ericsson, Morgan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för teknisk databehandling. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Tillämpad beräkningsvetenskap.
    A meta-model describing the development process of mobile learning2009Ingår i: Advances in Web Based Learning – ICWL 2009, Berlin: Springer-Verlag , 2009, s. 454-463Konferensbidrag (Refereegranskat)
  • 46507.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    A Survey of Research Methods and Purposes in Mobile Learning2011Ingår i: International Journal of Mobile and Blended Learning, ISSN 1941-8647, E-ISSN 1941-8655, Vol. 3, nr 1, s. 1-18Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this paper we present a survey of published research in mobile learning. We investigated 114 papers from mLearn 2005, 2007, and 2008, and classified them according to two dimensions: research method and research purpose. Research methods and purposes are important parts of how research is conducted. Alas, opinions and approaches towards research differ greatly. The classified papers are evenly distributed among the research methods investigated, with one exception, being few in Basic research. In terms of research purpose, papers aimed to describe the research were well represented while there was a lack of papers targeting evaluation. Papers recounting both Basic research and research done to evaluate are imperative since they help a research field to mature and also help researchers to avoid repeating known pitfalls. This maturity, in turn, will lead to better scalability and sustainability for future research efforts in the community of mobile learning.

  • 46508.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Ericsson, Morgan
    Uppsala University.
    Addressing Sustainability for Research Initiatives in Mobile Learning through Scalability2009Ingår i: Proceedings of the 8th IASTED International Conference on Web-Based Education / [ed] Uskov, V., ACTA Press, 2009, s. 7-12Konferensbidrag (Refereegranskat)
    Abstract [en]

    Understanding research initiatives in the field of mobile learning involves dealing with complexity. It is important to gather knowledge on how to nurse these attempts. To develop ideas and reach wide deployment of novel mobile learning is of great value. In this paper there is a discussion of the factors that describe attributes of mobile learning research initiatives and an investiga- tion of whether these are sustainable or not, and what this means. Sustainability for mobile learning initiatives is essential for the wide acceptance from both public and academia. The paper also addresses scalability of mobile learning research initiatives. Scalability is a term used to describe how well something can grow to suit an increasing complexity, and is addressed as a possibility to reflect on good ideas. Scalability is important in order to reach sustainability. Finally, this paper introduces a model that illustrates the evolutionary life cycle of a mobile learning research initiative. The model presents four evolution stages and these are: Idea, Experiment, Project, and Release.

  • 46509.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för datavetenskap (DV).
    Ericsson, Morgan
    University of Gothenburg / Chalmers.
    Asked and Answered: Communication Patterns of Experts on an Online Forum2013Ingår i: Proceedings IRIS36: August 11-14 2013 at Gran, Norway, 2013Konferensbidrag (Refereegranskat)
    Abstract [en]

    The notion of network structure for social relations dates back half a century. Nowadays people form social networks offline as well as online. At an online community people are connected trough information exchange of sorts. Interest groups form often forums to aid each other and discuss things. Programmers are no exception and a question and answer site called Stack Overflow has been up and running since 2008. Our focus is to find patterns of how people interact on this online community and see if we can find expert users. We find 4 different ways to categorize experts, which result in different rankings. We also investigate how expertise is divided among topics, and find some overlap with the global ranking. 

  • 46510.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Ericsson, Morgan
    Uppsala University.
    Bringing a Framework to Tackle the Development Process in Mobile Learning2009Ingår i: Proceedings of the 15th International Conference at Centre for Philosophy, Technology, and Social Systems / [ed] Basden, A., Haftor, D., and Grobler, L.M.J., 2009Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents a study that was conducted of the devel- opment process of an initiative that used podcasts (i.e., digital audio-files) to supplement lectures in higher education. A thorough data gathering was conducted using the iterative cycles of the action research approach. The empirical data was analyzed and this analysis resulted in a framework that shows how sustainability and scalability are linked. The framework also shows how an initiative is developed from Idea, to Trial, to Project, to Release, and how each of these stages can be described using four areas of concern, namely, Technology, Learning, Social, and Or- ganization. Using the experience from a specific mobile learning initiative to define a framework that is then used to conceptualize the development process is a way to bring together practice, theory, and research, and thus provide reliable evidence for the framework itself. The framework captures the development process and the relevant context in a unified theoretical attempt and is suitable for practitioners dealing with initiatives in the field of mobile learning.

  • 46511. Wingkvist, Anna
    et al.
    Ericsson, Morgan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för teknisk databehandling. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Tillämpad beräkningsvetenskap.
    Current practice in mobile learning: A survey of research method and purpose2009Ingår i: Proc. 8th World Conference on Mobile and Contextual Learning, Orlando, FL: University of Central Florida , 2009, s. 103-111Konferensbidrag (Refereegranskat)
  • 46512.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Ericsson, Morgan
    Uppsala University.
    Dealing with Stakeholders in Mobile Learning: A Study of Three Initiatives2009Ingår i: Proceeedings of the 32nd Information Systems Resaerch Seminar in Scandinavia (IRIS'32) / [ed] Molka-Danielsen, J., Molde University College , 2009Konferensbidrag (Refereegranskat)
    Abstract [en]

    There is a need to reach viable design for initiatives in mobile learning and researchers are faced with a magnitude of factors to consider. The work to identify and access stakeholders and acknowledge their requirement is a difficult task. Most mobile learning initiatives often follow an evolutionary development process where the system is constructed, evaluated, and refined in increments. During this process, the stakeholders and their needs might change, so even if there was an initial understanding, it might not be correct after one or more increments. In this paper we studied three initiatives with a focus on how they dealt with stakeholders during the development process and finds that the three initiatives deal with stakeholders in an on-demand fashion. New groups of stakeholders are considered when needed, and this leads to a development process that is a mix between sequential and evolutionary, which results in inflexible system solutions. In order to improve on this, stakeholders need to be regarded in a more inclusive fashion, where they are considered as part of the entire development process.

  • 46513. Wingkvist, Anna
    et al.
    Ericsson, Morgan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för teknisk databehandling. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Tillämpad beräkningsvetenskap.
    Dealing with stakeholders in mobile learning: A study of three initiatives2009Ingår i: Proc. 32nd Information Systems Research Seminar in Scandinavia, Norway: Molde University College , 2009, s. A72:1-14Konferensbidrag (Övrigt vetenskapligt)
  • 46514.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Uppsala University.
    Extracting and expressing experience with mobile learning: lessons learned2010Ingår i: International Journal of Mobile Learning and Organisation, ISSN 1746-725X, E-ISSN 1746-7268, Vol. 4, nr 4, s. 428-439Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Many published results in the field of mobile learning focus on isolated technology solutions or a specific trial rather than to reflect on the overall work practice and development process of whole initiative/s. Exchanging knowledge from past experiences is often done informally between researchers in mobile learning. Making the knowledge gained explicit is of great value, as it can provide a pre-understanding for others. This paper analyses and reflects on three mobile learning initiatives with respect to how these address technology, context and stakeholders. From this, six lessons are extracted: reuse as much as possible, consider how to work around bad/broken network connections, do not underestimate the need for data management, take advantage of situated learning, evaluate to validate the result and identify and include all stakeholders. These lessons can serve as considerations for researchers when undertaking new initiatives in mobile learning.

  • 46515.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Introducing Podcasts to the Educational Palette of a Dual-Mode Course2012Ingår i: Proceedings 2012 17th IEEE International Conference on Wireless, Mobile and Ubiquitous Technology in Education, WMUTE 2012, IEEE, 2012, s. 112-116Konferensbidrag (Refereegranskat)
    Abstract [en]

    Distance students can suffer from feelings of isolation, which can result in dropouts from lack of motivation to continue the course. Previous studies have shown that the use of podcasts can help reduce this feeling of isolation. Podcasts can also help make studies more flexible, which can aid students with a busy schedule. To evaluate podcasts in distance higher education, we provided the students with four types of podcasts: LectureCasts, TutorialCasts, ReviewCasts and ExtraCasts. We produced 54 podcasts during the course. The students perceived all of the types of podcasts helpful, but preferred the TutorialCasts. These focused on solving actual problems, and the students said that they learned a lot by these. We found that it takes a lot of resources to produce good podcasts and any attempt to introduce them should be budgeted accordingly. We also found that there are still several technical challenges to overcome, from local infrastructure to subscriptions models and device compatibility.

  • 46516.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Ericsson, Morgan
    Uppsala University.
    Sharing Experience from Three Initiatives in Mobile Learning: Lessons Learned2009Ingår i: Proceedings of the 17th International Conference on Computers in Education / [ed] Kong, S.C., Ogata, H., Arnseth, H. C., Chan, C. K. K., Hirashima, T., Klett, F., Lee, J. H. M., Liu, C. C., Looi, C. K., Milrad, M., Mitrovic, T., Nakabayashi, K., Wong, S. L., Yang, S. J. H., 2009, s. 613-618Konferensbidrag (Refereegranskat)
    Abstract [en]

    Incorporating knowledge from past experiences is an important part of any development process, as one has to know what worked and what did not in order to avoid repeating the same mistakes. However, many published results in the field of mobile learning focus on isolated technologies or a specific trial rather than to reflect on the overall work practice and outcome. Such reflections can offer maturity to this emerging field of research. This paper presents reflections gained from three mobile learning initiatives that are presented in the form of lessons learned. These lessons learned can serve as considerations for researchers when developing new initiatives.

  • 46517. Wingkvist, Anna
    et al.
    Ericsson, Morgan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för teknisk databehandling. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Tillämpad beräkningsvetenskap.
    Sharing experience from three initiatives in mobile learning: Lessons learned2009Ingår i: Proc. 17th International Conference on Computers in Education, Jhongli City, Taiwan: Asia-Pacific Society for Computers in Education , 2009, s. 613-617Konferensbidrag (Refereegranskat)
  • 46518.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    The Beginner’s Guide to ICT Context: A Theoretical Contribution Aimed for the Atypical Developer and Team2011Ingår i: Proceedings of the 34rd Information Systems Research Seminar in Scandinavia, 2011Konferensbidrag (Refereegranskat)
    Abstract [en]

    Many recent ICT development projects involve atypical de- veloper teams and practitioners that are domain experts, but not ex- perienced in information systems development. While domain experts usually participate in development projects, we find that many of them take a more active or even driving role in recent projects. This can pose a problem, since the common systems development methodologies are complicated and require training. They are also not designed for the level that these atypical teams and non-expert practitioners can benefit from. In this paper we formulate a framework based on personal experi- ence of several ICT development projects and a theoretical foundation in information systems development research. The framework is designed to be suitable and accessible by non-expert and to be able to serve as a platform for collaboration and communication. The framework divides the development process into four stages and four areas of concern. It also introduces a number of concepts, such as focus, scalability and equi- librium. A project scales from stage to stage, each focusing on a different area of concern. 

  • 46519.
    Wingkvist, Anna
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Ericsson, Morgan
    Uppsala University.
    Thinking ahead in mobile learning projects: A survey on risk assessment2009Ingår i: Proceedings of the 8th International Conference on Perspectives on Business Information Research / [ed] Aidemark, J., Carlsson, S., Cronkvist, B., Kristianstad Academic Press , 2009, s. 57-66Konferensbidrag (Refereegranskat)
    Abstract [en]

    Mobile learning is an innovate and dynamic field of multi-disciplinary research and development. This paper presents a study of risk assessment in mobile learning. Interviews, a questionnaire, and several publications are used as means for data collection. This is done to identify risks within mobile learning projects in order to investigate how well these fit a risk assessment model for socio-technical systems. The survey of mobile learning projects show that the project managers are faced with an array of potential risks. The risks are then classified according to a model developed by Lyytinen et al., which is based on the influential Leavitt’s Diamond. The research finds that the model is sufficient to classify the risks experienced by mobile learning projects. It does provide a good starting point and when used it can quickly illustrate how the variables relates to each other. The complexity concerning risk management is important for the mobile learning community, and a model to proceed from might benefit the community greatly.

  • 46520. Wingkvist, Anna
    et al.
    Ericsson, Morgan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för teknisk databehandling. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Tillämpad beräkningsvetenskap.
    Thinking ahead in mobile learning projects: A survey on risk assessment2009Ingår i: Proc. 8th International Conference on Perspectives in Business Informatics Research, Sweden: Kristianstad Academic Press , 2009, s. 57-66Konferensbidrag (Refereegranskat)
  • 46521.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Leitet, Johan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Podcasts as a Supplementary Teaching Tool for Distance Education2011Ingår i: Proceedings of the 3rd International Conference on Education and New Learning Technologies, 2011, s. 4186-4194Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper we describes an experiment we conducted to investigate how podcasts can be used as a teaching tool for distance education. Distance students have a higher drop-out rate and we wanted to aid them in managing the course load and have them complete the course on time. The course is a introduction to database technology and dual in the sense it combine distance and campus students. Most students claim they are short on time but this is especially true when it comes to distance students as they often have part or even full-time jobs. This results in them needing to have the flexibility to study on their own schedule but this also creates a sense of isolation as they are excluded from the community that is formed on campus.

    The campus lectures are offered as live streams and full recordings to the distance students so in our experiment we extend them with Lec- tureCasts, TutorialCasts and ExtraCasts. The LectureCast is an audio only version of the recorded lectures, the TutorialCast is an instructional podcast that shows how to solve a specific problem or use a specific tech- nology and the ExtraCast is extra, optional information related to the topic of the course.

    All in all, we produced 54 podcasts during the course and evaluated the process and the podcasts from a lecturer and student perspective. Students preferred the TutorialCasts and found that they learned a lot by watching these. From a lecture perspective, we found that while the TutorialCasts required some effort to record, the improved quality of the students’ hand-ins and reduced the number of revisions and questions. The students appreciated the ExtraCasts, but from a lecturer perspec- tive, we found that these require a lot of resources in planning and pro- duction so you need to budget this before hand. The students found the LectureCasts difficult to follow without video, but they require little effort to prepare, and it is possible to improve the understandability. Our experience from the podcast experiment can be summarized as fol- lows: it takes a lot of resources to produce good podcasts and any attempt to introduce them should be planned well in advanced and done in an iterative fashion, there are still several technical challenges to overcome, from local infrastructure to student subscriptions and device compatibil- ity, TutorialCasts proved to be a very effective addition to the Lecturer toolkit.

    We found that podcasts can help address these issues. Devices that can play audio and video podcasts are in wide use among our students, and offer the opportunity to study at any time and place. The podcasts allows the lecturers to relax both format and content, and to provide material that is suitable for different situations. 

  • 46522.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Uppsala University, Department of IT.
    Lincke, Rüdiger
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Löwe, Welf
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    A Metrics-Based Approach to Technical Documentation Quality2010Ingår i: Proceedings of the 7th International Conference on Quality of Information and Communications Technology, IEEE Communications Society, 2010, s. 476-481Konferensbidrag (Refereegranskat)
    Abstract [en]

    Technical documentation is now fully taking the step from stale printedbooklets (or electronic versions of these) to interactive and online versions.This provides opportunities to reconsider how we define and assess the qualityof technical documentation. This paper suggests an approach based on theGoal-Question-Metric paradigm: predefined quality goals are continuously assessedand visualized by the use of metrics. To test this approach, we performtwo experiments. We adopt well known software analysistechniques, e.g., clone detection and test coverage analysis, and assess thequality of two real world documentations, that of a mobile phone and of(parts of) a warship. The experiments show that quality issues can be identifiedand that the approach is promising.Technical documentation is now fully taking the step from stale printedbooklets (or electronic versions of these) to interactive and online versions.This provides opportunities to reconsider how we define and assess the qualityof technical documentation. This paper suggests an approach based on the Goal-Question-Metric paradigm: predefined quality goals are continuously assessedand visualized by the use of metrics. To test this approach, we performtwo experiments. We adopt well known software analysistechniques, e.g., clone detection and test coverage analysis, and assess thequality of two real world documentations, that of a mobile phone and of(parts of) a warship. The experiments show that quality issues can be identifiedand that the approach is promising.

  • 46523.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Löwe, Welf
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    A Visualization-based Approach to Present and Assess Technical Documentation Quality2011Ingår i: Electronic Journal of Information Systems Evaluation, ISSN 1566-6379, E-ISSN 1566-6379, Vol. 14, nr 1, s. 150-159Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Technical documentation has moved from printed booklets to electronic versions that need to be updated continuously to match product development and user demands. There is an imminent need to ensure the quality of technical documentation, i.e., information that fol- lows a product.

    In order to ensure the quality, it is important to be able to measure it in a constructively way. We approach technical documentation quality from a software quality perspective and rely on automated measurements and analyses. We acknowledge that it is not possible to assess quality attributes such as “ease of understanding” using automated measure- ments. We rely on visualizations as a communication medium between machines and humans, and define a visualization-based quality assess- ment approach for technical documentation.

    In order to test our approach, we use it to assess the quality of 3 real- world documentations from a Swedish mobile phone manufacture, a Japanese camera manufacture, and a Swedish warship producer. The study shows that our approach can be used to identify potential quality defects. For example, we tested an unclassified subset of the warship’s technical documentation and found that 49% of it was redundant text clones. We performed the study in collaboration with a Swedish company that is in charge of creating and maintaining the 3 documentations, and they acknowledge that our approach has great potential and that our results proved helpful to them. 

  • 46524.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Löwe, Welf
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Information Quality Management: a Model-Driven Approach2012Ingår i: Proceedings of IRIS 2012, 2012Konferensbidrag (Refereegranskat)
    Abstract [en]

    Large amounts of information are produced on a daily basis. We include any form of electronic data in the term information, for example e-books, web sites, software, databases, etc. Several studies have investigated the quality of this information, and often find it lacking. It is a complex process of producing said information but also to define and assess quality of the information, especially across the many different forms. We present a model-driven approach to information quality management, were models and indicators are used to define and assess qual- ity. We rely on abstraction of models, which are described using meta model. We show how this model-driven approach is implemented by a software tool that (i) reads information, (ii) performs analyses on this information, and (iii) visualizes the results, to help stakeholders understand quality issues. The software tool has been used to evaluate the quality of real world software and docu- mentations. 

  • 46525.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Löwe, Welf
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Making Sense of Technical Information Quality: A Software-based Approach2011Ingår i: Journal of Software Technology, Vol. 14, nr 3, s. 12-18Artikel i tidskrift (Refereegranskat)
  • 46526.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Department of IT, Uppsala University.
    Löwe, Welf
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Lincke, Rüdiger
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Incorporating Information Quality in Software Development2010Ingår i: Proceedings of the 33rd Information Systems Research Seminar in Scandinavia, 2010Konferensbidrag (Refereegranskat)
    Abstract [en]

    The usefulness and value of an information system is directly related to its perceived quality. Quality is multidimensional concept, and includes an object of interest, the viewpoint on that object and the qualities attributed to the object. This suggests that there is no universal standard in systems development; quality is rather defined how well the information system meets the purpose and the goals of the organization it is used within. It is important that people involved in a particular systems development project have an agreed understanding of what the strive for quality means. This agreed understanding should include how to assign appropriate quality characteristics to both the technical and social aspects of a system as well as how to assess and interpret them. The purpose of this paper is twofold; first, we emphasize that any definition of quality should be specific to a system, and include both the social and technical aspects of a system. Second, we extend methods used to define and assess quality to include social and technical aspects that extends beyond software. Our work is particularly focused on information quality.

  • 46527. Wingkvist, Anna
    et al.
    Ericsson, Morgan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för teknisk databehandling. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Tillämpad beräkningsvetenskap.
    Löwe, Welf
    Lincke, Rüdiger
    Information quality testing2010Ingår i: Perspectives in Business Informatics Research, Berlin: Springer-Verlag , 2010, s. 14-26Konferensbidrag (Refereegranskat)
  • 46528.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Uppsala University, Department of IT.
    Löwe, Welf
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Lincke, Rüdiger
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Information Quality Testing2010Ingår i: Proceedings of the 9th International Conference on Perspectives in Business Informatics Research, Springer, 2010, s. 14-26Konferensbidrag (Refereegranskat)
    Abstract [en]

    When a new system, such as a knowledge management system or a contentmanagement system is put into production, both the software andhardware are systematically and thoroughly tested while the mainpurpose of the system --- the information --- often lacks systemictesting. In this paper we study how to extend testing approaches fromsoftware and hardware development to information engineering. Wedefine an information quality testing procedure based on test cases,and provide tools to support testing as well as the analysis andvisualization of data collected during the testing. Further, wepresent a feasibility study where we applied information qualitytesting to assess information in a documentation system. The resultsshow promise and have been well received by the companies thatparticipated in the feasibility study. When a new system, such as a knowledge management system or a contentmanagement system is put into production, both the software andhardware are systematically and thoroughly tested while the mainpurpose of the system --- the information --- often lacks systemictesting. In this paper we study how to extend testing approaches fromsoftware and hardware development to information engineering. Wedefine an information quality testing procedure based on test cases,and provide tools to support testing as well as the analysis andvisualization of data collected during the testing. Further, wepresent a feasibility study where we applied information qualitytesting to assess information in a documentation system. The resultsshow promise and have been well received by the companies thatparticipated in the feasibility study.

  • 46529. Wingkvist, Anna
    et al.
    Löwe, Welf
    Ericsson, Morgan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för teknisk databehandling. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Tillämpad beräkningsvetenskap.
    Lincke, Rüdiger
    Analysis and visualization of information quality of technical documentation2010Ingår i: Proc. 4th European Conference on Information Management and Evaluation, Reading, UK: Academic Conferences , 2010, s. 388-396Konferensbidrag (Refereegranskat)
  • 46530.
    Wingkvist, Anna
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Löwe, Welf
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Ericsson, Morgan
    Uppsala University, Department of IT.
    Lincke, Rüdiger
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för datavetenskap, fysik och matematik, DFM.
    Analysis and Visualization of Information Quality of Technical Documentation2010Ingår i: Proceedings of the 4th European Conference on Information Management and Evaluation / [ed] Castro Neto, M, Academic Publishing International, 2010, s. 388-396Konferensbidrag (Refereegranskat)
    Abstract [en]

    Technical documentation has moved from printed booklets to online versions that need to be updated continuously to match product development and user demands. There is an imminent need to ensure the quality of technical documentation, i.e. information that follows a product.

    Moving from printed material to online versions also allows for documentation to become active, to integrate interactive content, which blurs the boundaries between information and software. In order to assess quality of technical documentation, we adopt analyses and visualizations known from quality assessment of software. The analyses assess text copies, usage, structural properties, and the conformance of information to meta-information. The analysis results are visualized using a range of abstractions to aid in identifying and communicating quality issues to different stakeholders.

    In a case study, we assessed the quality of real world technical documentations from a Swedish mobile phone vendor, a Japanese camera vendor, and a Swedish warship producer. The study showed that our analyses and visualization are applicable and can identify quality issues. For example, we tested an unclassified subset of the warship’s technical documentation and found that 49% of it was redundant information.

    The case study was conducted at a Swedish company that is in charge of creating and maintaining technical documentation. While our approach is limited to analysis that can be performed automatically, the company acknowledges that it has great potential and that our results proved helpful.

  • 46531.
    Wingren, Robert
    Linköpings universitet, Institutionen för datavetenskap.
    Fallstudie av publiceringsverktyg för implementation av mindre webbplats2010Självständigt arbete på grundnivå (högskoleexamen), 10,5 poäng / 16 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Det här examensarbetet har till stora delar utförts på Teamweb AB som är ett företag som utvecklar webbplatser. Uppdraget gick ut på att skapa en webbplats åt en av Teamwebs kunder, föreningen FC Syrianska Linköping, i Teamwebs eget publiceringsverktyg och undersöka hur väl det går efter kundens ställda krav. För att få något att jämföra med implementerades vissa utvalda delar av webbplatsen i ett annat publiceringsverktyg, Joomla. Rapporten går igenom arbetets olika delmoment som framtagande av kravspecifikation, prototyp och skapandet av själva webbplatsen i de båda publiceringsverktygen. En diskussion förs efter detta om hur det har gått att skapa webbplatsen i de båda verktygen och om deras respektive fördelar.

    Som slutsats kommer vi fram till att Teamwebs publiceringsverktyg är väl lämpat för att utveckla en mindre webbplats av detta slag. Det motiveras utifrån att vi upplevde det som enkelt och att det gick snabbt att sätta sig in i, vilket är viktigt när projekttiden är kort. Vidare gick det att skapa det som var uppsatt som skall-krav i kravspecifikationen och publiceringsverktyget hade flera inbyggda funktioner som vi kunde dra nytta av i arbetet.

    Joomla hade också sina fördelar, men vår uppfattning är att verktyget mer lämpar sig för utveckling av större webbplatser.

  • 46532.
    Wingren, Staffan
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media, Data- och systemvetenskap.
    Paradigmskifte i programmeringen: Innebörden av funktionell programmering vid programutveckling2010Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Tecken finns på att det objektorienterade paradigmet börjar tappa sinstatus som den oomstridda lösningen inom systemutveckling. Nya idéerkommer in och ställer grundläggande programmeringsprinciper påända. Vad kan ett deklarativt förhållningsätt tillföra och vad innebär detatt programmera funktionellt? Variabler är en viktig komponent i denprogrammering som huvudsakligen bedrivs idag. Variabler tillhör detimperativa paradigmet i vilket programmeraren i hög grad beskriverhur beräkningar skall utföras av datorn. Detta står i kontrast till detdeklarativa paradigmet – i vilket funktionell programmering normaltplaceras – där man har en högre abstraktionsgrad, saknar variabler ochendast beskriver att något skall göras – inte hur. I funktionellprogrammering kan inte något tillstånd i samma bemärkelse som iimperativ – procedurell eller objektorienterad – programmering finnas.Upprepningar måste göras med rekursion och program ärdeterminerade. Både fördelar och nackdelar finns med detta, det blirlättare att resonera kring ett program men samtidigt kan sidoeffekter,som att skriva något till en fil, inte förekomma i rent funktionellaprogram. Eftersom detta är en vanligt förekommande uppgift idatorprogram idag måste det hanteras på något sätt. Att kombinerafunktionella och objektorienterade språk innebär visserligen enkompromiss där man förlorar en del av de fördelar som finns med rentfunktionella program men är samtidigt en naturlig utveckling från detobjektorienterade arbetssätt vilket för närvarande är så dominerande.Följande uppsats ämnar att förklara den funktionella programmeringen,redogöra för de aspekter som gör den intressant och beskriva dess platsi framtidens program- och systemutveckling.Tecken finns på att det objektorienterade paradigmet börjar tappa sinstatus som den oomstridda lösningen inom systemutveckling. Nya idéerkommer in och ställer grundläggande programmeringsprinciper påända. Vad kan ett deklarativt förhållningsätt tillföra och vad innebär detatt programmera funktionellt? Variabler är en viktig komponent i denprogrammering som huvudsakligen bedrivs idag. Variabler tillhör detimperativa paradigmet i vilket programmeraren i hög grad beskriverhur beräkningar skall utföras av datorn. Detta står i kontrast till detdeklarativa paradigmet – i vilket funktionell programmering normaltplaceras – där man har en högre abstraktionsgrad, saknar variabler ochendast beskriver att något skall göras – inte hur. I funktionellprogrammering kan inte något tillstånd i samma bemärkelse som iimperativ – procedurell eller objektorienterad – programmering finnas.Upprepningar måste göras med rekursion och program ärdeterminerade. Både fördelar och nackdelar finns med detta, det blirlättare att resonera kring ett program men samtidigt kan sidoeffekter,som att skriva något till en fil, inte förekomma i rent funktionellaprogram. Eftersom detta är en vanligt förekommande uppgift idatorprogram idag måste det hanteras på något sätt. Att kombinerafunktionella och objektorienterade språk innebär visserligen enkompromiss där man förlorar en del av de fördelar som finns med rentfunktionella program men är samtidigt en naturlig utveckling från detobjektorienterade arbetssätt vilket för närvarande är så dominerande.Följande uppsats ämnar att förklara den funktionella programmeringen,redogöra för de aspekter som gör den intressant och beskriva dess platsi framtidens program- och systemutveckling.

  • 46533.
    Wingren, Ulrika
    et al.
    Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap.
    Järnfors, Jenny
    Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap.
    Webbanvändbarhet- En studie av Idenets gränssnitt mot användaren2002Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Med dagens teknik är det lätt att publicera information på Internet som andra personer kan ta del av. Detta kan göras mer eller mindre användbart. Det finns mängder av teorier och guidelines för hur detta ska gå till. I denna rapport försöker vi reda ut om dessa teorier används i praktiken och hur det påverkar användaren. Vad är det egentligen som gör en webbplats användbar? Vi har främst koncentrerat oss på teorier och guidelines som rör hur man placerar information på ett användbart sätt samt hur man underlättar för användaren då de navigerar mellan de olika sidorna. För att undersöka huruvida olika teorier och guidelines tillämpas i praktiken har vi valt att närmare granska Blekinge Tekniska Högskolas intranät, Idenet. Genom användbarhetstester med användare, samtal med webbutvecklare och en egen undersökning av Idenets gränssnitt har vi försökt besvara följande frågor: Hur pass användbart är Idenet? Tillämpas de av oss utvalda teorier om användbarhet på Idenet? Stämmer teorierna med användarnas åsikter om Idenets gränssnitt? Vi kom fram till att vissa teorier tillämpas på Idenet och andra inte. Eftersom vi i samtalet med webbutvecklare fick veta att man inte direkt tillämpat några teorier och guidelines i utvecklings arbetet var det intressant att se att många teorier likväl kunde identifieras på Idenet. Samtidigt som Idenets gränssnitt talar emot vissa teorier och guidelines upplevdes det av användaren i det stora hela som lätt att använda. Användarens vana att använda Idenet tror vi har en stor betydelse i detta sammanhang. Det var också intressant att se att trots att användarna tyckte att Idenet var lätt att använda hade de många förslag på åtgärder som skulle förbättra Idenet.

  • 46534.
    Wingstedt, Johnny
    RISE., Swedish ICT, Interactive Institute.
    Music, Technology & Research and Music, Technology & Learning2004Konferensbidrag (Refereegranskat)
  • 46535.
    Wingstedt, Johnny
    RISE., Swedish ICT, Interactive Institute.
    Narrative functions of film music in a relational perspective2004Ingår i: ISME Proceedings - Sound Worlds to Discover, 2004, 1Konferensbidrag (Refereegranskat)
  • 46536.
    Wingstedt, Johnny
    RISE., Swedish ICT, Interactive Institute.
    Narrative music: towards an understanding of musical narrative functions in multimedia2005Licentiatavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    As the computer screen is replacing the book as the dominant medium for communication (Kress, 2003), questions about how meaning is constituted by the multimodal interaction of different media (including music) is becoming increasingly important in contemporary research of pedagogy, sociology and media studies. The overall aim with this licentiate thesis is to explore musical narrative functions as they appear in multimedia such as film and computer games. The thesis is based on three publications. Publication 1 proposes a classification of musical narrative functions, with 6 narrative classes(the Emotive, Informative, Descriptive, Guiding, Temporal and Rhetorical classes) and 11 categories. The relational interplay of music with contextual factors is emphasized. Publication 2 describes the design of a software tool, REMUPP (Relations Between Musical Parameters and Perceived Properties), to be used for experimental studies of musical expression. REMUPP is used for real time alteration of musical expression, by the manipulation of musical parameters such as tempo, harmony, rhythm, articulation, etc. Publication 3 describes a quasi-experiment using REMUPP, where a group of young participants (12-13 years old) were given the task of adapting musical expression – by manipulating 7 parameters – to make it fit 3 visual scenes shown on a computer screen. They also answered a questionnaire asking about their musical backgrounds and habits of listening to music, watching movies and playing computer games. Numerical data from the manipulations were analyzed statistically with regards to the preferred values of the musical parameters in relation to the different visual scenes. The results indicated awareness and knowledge about codes and conventions of musical narrative functions, and were to some degree affected by the participants’ gender, musical backgrounds and media habits.

  • 46537.
    Wingstedt, Johnny
    et al.
    RISE., Swedish ICT, Interactive Institute.
    Berg, Jan
    RISE., Swedish ICT, Interactive Institute.
    Relations between Selected Musical Parameters and Expressed Emotions – Extending the Potential of Computer Entertainment2005Ingår i: Proceedings of the 2005 ACM SIGCHI International Conference on Advances in computer entertainment technology, 2005, 1Konferensbidrag (Refereegranskat)
    Abstract [en]

    A fundamental aspect of music is its ability to express emotions. To develop and extend the potential of music in computer entertainment, a deeper understanding of music's emotional aspects is essential. An experiment was designed to explore the suitability of a specially designed interface (REMUPP) as a means to investigate how musical parameters can contribute to expressing the emotions of 'happiness' and 'sadness'. In the experiment, a number of subjects listened to music examples where the musical performance was governed by a set of musical parameters that were controlled by the subject. The subjects adjusted the parameter settings to best express a given emotion. These settings were recorded and analyzed. The experiment verifies the REMUPP tool as a valid means for the investigation of musical parameters and emotion. Issues of importance for realization of music in the computer entertainment context are also addressed.

  • 46538.
    Wingstedt, Johnny
    et al.
    RISE., Swedish ICT, Interactive Institute.
    Berg, Jan
    RISE., Swedish ICT, Interactive Institute.
    Liljedahl, Mats
    RISE., Swedish ICT, Interactive Institute.
    Lindberg, Stefan
    RISE., Swedish ICT, Interactive Institute.
    REMUPP: an interface for evaluation of relations between musical parameters and perceived properties2005Ingår i: Proceedings of the 2005 ACM SIGCHI International Conference on Advances in computer entertainment technology, 2005, 1Konferensbidrag (Refereegranskat)
    Abstract [en]

    New media offers new roles, functions and challenges to music, calling for new methods and tools for music research. To meet these increasingly important challenges. REMUPP, a new software tool for the investigation of relations between music and perceived properties or characteristies, was designed. The ideas behind REMUPP and the technology used to realize it is deseribed. In order to test the sensitivity and validity of REMUPP. a simple experiment aimed to examine some properties of music was carried out. 38 subjects were listening to music and instructed to indicate their priority for different aspects of the music (musical parameters) while they actively controlled these aspects. The results show that REMUPP is able to bring out significant differences between the musical parameters, and that these differences correspond well with findings by others.

  • 46539.
    Wingstedt, Johnny
    et al.
    RISE., Swedish ICT, Interactive Institute.
    Liljedahl, Mats
    RISE., Swedish ICT, Interactive Institute.
    Lindberg, Stefan
    Berg, Jan
    RISE., Swedish ICT, Interactive Institute.
    REMUPP - An Interactive Tool for Investigating Musical Properties and Relations2005Konferensbidrag (Refereegranskat)
    Abstract [en]

    A typical experiment design within the field of music psychology is playing music to a test subject who listens and reacts – most often by verbal means. One limitation of this kind of test is the inherent difficulty of measuring an emotional reaction in a laboratory setting. This paper describes the design, functions and possible uses of the software tool REMUPP (Relations between musical parameters and perceived properties), designed for investigating various aspects of musical experience. REMUPP allows for non-verbal examination of selected musical parameters (such as tonality, tempo, timbre, articulation, volume, register etc.) in a musical context. The musical control is put into the hands of the subject, introducing an element of creativity and enhancing the sense of immersion. Information acquired with REMUPP can be output as numerical data for statistical analysis, but the tool is also suited for the use with more qualitatively oriented methods.

  • 46540.
    Winkelmann, Oscar
    Södertörns högskola, Institutionen för naturvetenskap, miljö och teknik.
    I ”Like” it. Jag ”Gillar” det: En studie av hur användares beteende och upplevelser påverkas av en "like-funktion", vid bildpublicering i sociala medier2014Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    The purpose of this paper has been to study how users experiences and behaviors are influenced by a "like" function, when publication of images in social media with the photo app Instagram as the selected base. In this study respondents has been part of a study regarding their experiences and behavior related to "like" function in Instagram. The results of the question form have then been analyzed to find patterns in their behavior and to exemplify/reinforce different type of user-behavior found in related scientific articles.

    The study has shown that the behavior of Instagram users is affected by the "like" function, when they believes that the function is a status marker that raises the interest for certain users by the number of likes. Through my results, I have been able to amplify and illustrate several theories of Goffman, Buckingham and Gripsrud which are presented in the report.

  • 46541.
    Winkelmann, Oscar
    Södertörns högskola, Institutionen för naturvetenskap, miljö och teknik.
    Information is the key: Att skapa strukturen till ett användarvänligt informationsverktyg2013Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Denna rapport redovisar förstudien och arbetet med att utveckla en sidstruktur för den kommande nyutvecklingen av internvertyget Infopunkt. I rapporten beskrivs det hur jag har utfört en förstudie gällande det nuvarande internverktyget Infopunkt och dess utvecklingsmöjligheter, för att sedan sammanställa informationen och ta fram en övergripande designstrategi för att skapa en sitemap. Denna sitemap illusterar en ny uppdaterad sidstruktur för Infopunkt och var det primära målet med examensarbetet. Den sitemap jag har utvecklat kommer att ligga till grund för den byrå som sedan ska utveckla den nya uppdaterade versionen av Infopunkt.

  • 46542.
    Winkler, F.
    et al.
    NEC Europe Ltd..
    Abbadessa, D.
    NEC Europe Ltd..
    Silva, J. Da
    NEC Europe Ltd..
    Girao, J.
    NEC Europe Ltd..
    Schmidt, Mischa
    NEC Laboratories Europe, NEC Europe Ltd., Heidelberg.
    Enriching IPTV Services and Infrastructure with Identity Management2008Ingår i: IEEE GLOBECOM 2008, Global Telecommunications Conference: New Orleans, Nov. 30 2008-Dec. 4 2008, Piscataway, NJ: IEEE Communications Society, 2008Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    IPTV is regarded as one of the key technologies of triple play services by telecommunication incumbents. It is seen as the differentiator to reduce customer churn. However, as more operators deploy this service, the factors for differentiation are dissolving rapidly. In this paper we present how identity management can enrich IPTV and thus provide a variety of new business opportunities that will foster an operator's position and the contractual bindings with its customers. We present novel business models that are made possible by integrated identity management and describe their importance to the user. Furthermore, we address privacy aspects for IPTV service portfolios - a topic which is crucial to gain user acceptance for new services.

  • 46543.
    Winkler, Florian
    et al.
    NEC Europe Ltd..
    Schmidt, Mischa
    NEC Europe Ltd..
    Felis, Sebastian
    NEC Europe Ltd..
    Neuwirt, Oleg
    NEC Europe Ltd..
    Silva, Joao
    NEC Europe Ltd..
    Richter, Nils
    NEC Europe Ltd..
    Abbadessa, Danile
    NEC Europe Ltd..
    Identity management for IMS-based IPTV2008Ingår i: 2008 IEEE Global Telecommunications Conference: New Orleans, Louisiana, 30 November 2008-04 December 2008., Piscataway, NJ: IEEE Communications Society, 2008, s. 1637-1641Konferensbidrag (Refereegranskat)
    Abstract [en]

    IPTV as an integral part of triple play service offers is regarded as a major differentiation factor by incumbent telecommunication operators. However, as more operators provide these services, differentiation is fading. Analysts agree that the key to differentiation are value added services which in the long term require business collaborations of incumbents and 3rd party Service Providers. Additional value is added by integrating existing and well known Internet services into those service portfolios.In this paper, we present how Identity Management technology can simplify the setup of these collaborations and enhance the user experience by secure, anonymous and seamless service usage, e.g. by providing Single Sign On and pseudonyms. We furthermore detail an architecture that combines IPTV based on the IPMultimedia Subsystem with Identity Management to offer consumers a comfortable, privacy aware access to value added services. Especially in the context of IPTV, these are important attributes to reach a high and sustainable user acceptance.

  • 46544.
    Winkler, Michael
    Högskolan i Skövde, Institutionen för kommunikation och information.
    Measuring Performance of IT departments in Swedish municipalities2010Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Every modern organization relies on information systems and has a need formeasuring the performance of those systems and the IT department. It is furthermorewanted to be able to compare oneself to others. Municipalities struggle with theabsence of an instrument designed for their specific needs and circumstances becausemost instruments are designed for profit organizations, focus heavily on technical andeconomical criteria and do not involve criteria that are easy to compare. In this projectthe success factor analysis, a performance measurement instrument, is selected,modified and finally applied in two Swedish municipalities to investigate thesignificance of this instrument and its ability to identify significant factors of success.With interpreting the data gathered using on-line surveys, similarities and comparablecriteria as well as eight significant factors could be identified that are genericthroughout all surveys done.

  • 46545.
    Winkler Pettersson, Lars
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Människa-datorinteraktion.
    Kjellin, Andreas
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informationsvetenskap, Människa-datorinteraktion.
    Lind, Mats
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informationsvetenskap, Människa-datorinteraktion.
    Seipel, Stefan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Centrum för bildanalys. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Datoriserad bildanalys.
    Evaluating Collaborative Visualization of Spatial Data in Multi-Viewer Displays2008Manuskript (preprint) (Övrigt vetenskapligt)
  • 46546.
    Winkler Pettersson, Lars
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Människa-datorinteraktion.
    Kjellin, Andreas
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media, Människa-datorinteraktion.
    Lind, Mats
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media, Människa-datorinteraktion.
    Seipel, Stefan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Centrum för bildanalys. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Datoriserad bildanalys.
    On the role of visual references in collaborative visualization2010Ingår i: Information Visualization, ISSN 1473-8716, E-ISSN 1473-8724, Vol. 9, nr 2, s. 98-114Artikel i tidskrift (Refereegranskat)
  • 46547.
    Winkler Pettersson, Lars
    et al.
    Informationsteknologi, Uppsala universitet.
    Kjellin, Andreas
    Informationsvetenskap, Uppsala universitet.
    Lind, Mats
    Informationsvetenskap, Uppsala universitet.
    Seipel, Stefan
    Informationsvetenskap, Uppsala universitet.
    On the role of visual references in collaborative visualization2009Ingår i: Information Visualization, ISSN 1473-8716, E-ISSN 1473-8724, Vol. 9, nr 2, s. 98-114Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Multi-Viewer Display Environments (MVDE) provide unique opportunities to present personalized information to several users concurrently in the same physical display space. MVDEs can support correct 3D visualizations to multiple users, present correctly oriented text and symbols to all viewers and allow individually chosen subsets of information in a shared context. MVDEs aim at supporting collaborative visual analysis, and when used to visualize disjoint information in partitioned visualizations they even necessitate collaboration. When solving visual tasks collaboratively in a MVDE, overall performance is affected not only by the inherent effects of the graphical presentation but also by the interaction between the collaborating users.

    We present results from an empirical study where we compared views with lack of shared visual references in disjoint sets of information to views with mutually shared information. Potential benefits of 2D and 3D visualizations in a collaborative task were investigated and the effects of partitioning visualizations both in terms of task performance, interaction behavior and clutter reduction. In our study of a collaborative task that required only a minimum of information to be shared, we found that partitioned views with a lack of shared visual references were significantly less efficient than integrated views. However, the study showed that subjects were equally capable of solving the task at low error levels in partitioned and integrated views. An explorative analysis revealed that the amount of visual clutter was reduced heavily in partitioned visualization, whereas verbal and deictic communication between subjects increased. It also showed that the type of the visualization (2D/3D) affects interaction behavior strongly. An interesting result is that collaboration on complex geo-time visualizations is actually as efficient in 2D as in 3D.

  • 46548.
    Winkler Pettersson, Lars
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Människa-datorinteraktion.
    Seipel, Stefan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Centrum för bildanalys. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Datoriserad bildanalys.
    Collaborative Pixel-Accurate Interaction with PixelActiveSurface2007Konferensbidrag (Övrigt vetenskapligt)
  • 46549.
    Winkler Pettersson, Lars
    et al.
    Informationsteknologi, Uppsala universitet.
    Seipel, Stefan
    Högskolan i Gävle, Institutionen för matematik, natur- och datavetenskap, Ämnesavdelningen för datavetenskap.
    Collaborative pixel-accurate interaction with PixelActiveSurface2007Ingår i: Extended Abstracts 2007, 2007Konferensbidrag (Refereegranskat)
  • 46550.
    Winqvist, Arvid
    Linköpings universitet, Institutionen för systemteknik, Datorteknik. Linköpings universitet, Tekniska högskolan.
    DSP implementation of the Cholesky factorisation2014Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Choleskyfaktoriseringen är ett effektivt verktyg som, när det används korrekt, signifikantkan minska beräkningskomplexiteten i många applikationer. Detta examensarbeteinnehåller en ingående studie av faktoriseringen, några av dess applikationersamt en implementation på Coresonic SIMT DSP architecture.

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