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  • 7101.
    Thies, Anna
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Experio Lab, County Council of Värmland, Sweden.
    Nouri, Jalal
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Hindering Contradictions in Healthcare: An activity-theoretical analysis of a design-led investigation in primary care2015Ingår i: Proceedings of the Third European Conference on Design4Health 2015, Sheffield, 13 - 16 July 2015 / [ed] Kirsty Christer, Sheffield, UK: Sheffield Hallam University , 2015, s. 1-9Konferensbidrag (Refereegranskat)
    Abstract [en]

    The Swedish healthcare system has been reformed in a significant way during the last decades resulting in several challenges. One of those challenges, addressed in this paper, concerns the relation between decreased resources and patient-centred care. Thus, this paper poses the question of why healthcare faces difficulties in transforming itself to become more patient- centred. To investigate the question, a case study previously unprecedented in Sweden was conducted at a primary care unit: The first author was employed by the county council as in-house service- designer in a nationally funded1 project with a placement at one specific primary care unit over 15 months. The project was initiated in 2014 and investigated the use of design methodology to explore the needs for future improvement in primary care. Collected data has been analyzed through Activity Theory, resulting in the identification of two major contradictions that emerge between the overarching activity of the organization and two inherent systems: the patient/citizen's activity system of getting help to gain better health and the doctor's activity system of providing care.

  • 7102. Thil, Stéphane
    et al.
    Hong, Mei
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för systemteknik. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Reglerteknik.
    Söderström, Torsten
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för systemteknik. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Reglerteknik.
    Gilson, Marion
    Garnier, Hugues
    Statistical analysis of a third-order cumulants based algorithm for discrete-time errors-in-variables identification2008Ingår i: Proc. 17th IFAC World Congress, International Federation of Automatic Control , 2008Konferensbidrag (Refereegranskat)
  • 7103. Thilakarathna, Kenneth
    et al.
    Keppitiyagama, Chamath
    De Zoysa, Kasun
    Hansson, Henrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    INCORPORATING DIGITAL TOOLS FOR INFORMAL PEER GROUP LEARNING2010Konferensbidrag (Refereegranskat)
  • 7104.
    Thill, Serge
    et al.
    Högskolan i Skövde, Institutionen för informationsteknologi. Högskolan i Skövde, Forskningscentrum för Informationsteknologi.
    Riveiro, Maria
    Högskolan i Skövde, Institutionen för informationsteknologi. Högskolan i Skövde, Forskningscentrum för Informationsteknologi.
    Lagerstedt, Erik
    Högskolan i Skövde, Institutionen för informationsteknologi. Högskolan i Skövde, Forskningscentrum för Informationsteknologi.
    Lebram, Mikael
    Högskolan i Skövde, Institutionen för informationsteknologi. Högskolan i Skövde, Forskningscentrum för Informationsteknologi.
    Hemeren, Paul
    Högskolan i Skövde, Institutionen för informationsteknologi. Högskolan i Skövde, Forskningscentrum för Informationsteknologi.
    Habibovic, Azra
    Research Institutes of Sweden, RISE Viktoria, Lindholmen Science Park, Göteborg, Sweden.
    Klingegård, Maria
    Research Institutes of Sweden, RISE Viktoria, Lindholmen Science Park, Göteborg, Sweden.
    Driver adherence to recommendations from support systems improves if the systems explain why they are given: A simulator study2018Ingår i: Transportation Research Part F: Traffic Psychology and Behaviour, ISSN 1369-8478, E-ISSN 1873-5517, Vol. 56, s. 420-435Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper presents a large-scale simulator study on driver adherence to recommendationsgiven by driver support systems, specifically eco-driving support and navigation support.123 participants took part in this study, and drove a vehicle simulator through a pre-defined environment for a duration of approximately 10 min. Depending on the experi-mental condition, participants were either given no eco-driving recommendations, or asystem whose provided support was either basic (recommendations were given in theform of an icon displayed in a manner that simulates a heads-up display) or informative(the system additionally displayed a line of text justifying its recommendations). A naviga-tion system that likewise provided either basic or informative support, depending on thecondition, was also provided.

    Effects are measured in terms of estimated simulated fuel savings as well as engine brak-ing/coasting behaviour and gear change efficiency. Results indicate improvements in allvariables. In particular, participants who had the support of an eco-driving system spenta significantly higher proportion of the time coasting. Participants also changed gears atlower engine RPM when using an eco-driving support system, and significantly more sowhen the system provided justifications. Overall, the results support the notion that pro-viding reasons why a support system puts forward a certain recommendation improvesadherence to it over mere presentation of the recommendation.

    Finally, results indicate that participants’ driving style was less eco-friendly if the navi-gation system provided justifications but the eco-system did not. This may be due to par-ticipants considering the two systems as one whole rather than separate entities withindividual merits. This has implications for how to design and evaluate a given driver sup-port system since its effectiveness may depend on the performance of other systems in thevehicle.

  • 7105.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johansson, Carolina
    Bodies, boards, clubs and bugs: a study of bodily engaging artifacts2010Ingår i: CHI 2010 Extended Abstracts, ACM Press , 2010Konferensbidrag (Övrigt vetenskapligt)
  • 7106.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johansson, Carolina
    Bodies, boards, clubs and bugs: Exploring bodily engaging artifacts2010Ingår i: Whole Body Interaction Workshop, David England, Jennifer G Sheridan, Beth Crane , 2010Konferensbidrag (Övrigt vetenskapligt)
  • 7107.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johansson, Carolina
    Design qualities for Whole Body Interaction – Learning from Golf, Skateboarding and BodyBugging2010Ingår i: NordiCHI 2010, ACM Press , 2010Konferensbidrag (Övrigt vetenskapligt)
  • 7108.
    Tholander, Jakob
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Using body cards in a design process for going from bodily experiences to design2014Ingår i: Proceeding BCS-HCI '14 Proceedings of the 28th International BCS Human Computer Interaction Conference on HCI 2014 - Sand, Sea and Sky - Holiday HCI, ACM Digital Library, 2014, s. 141-150Konferensbidrag (Refereegranskat)
    Abstract [en]

    To build creative links between ethnographic findings of bodily practices and design, we developed so called body cards to document experiential qualities to be used in idea generation and early prototyping. These focus on the stages of a design process that involves investigating a use domain and making such knowledge relevant and usable for design. This involves challenges of effectively describing – with theoretical and empirical grounding - how bodily action and experience actually occur, in relation to people, artefacts, and activities. We discuss challenges in bridging between ethnographic findings and design of technologies for bodily experiences. Designing for the body in interaction is then not only about better ways of sensing bodily actions, but just as much about integrating these in the space of social interaction.

  • 7109.
    Tholander, Jakob
    et al.
    Södertörns högskola, Institutionen för kommunikation, teknik och design, Medieteknik.
    Fernaeus, Ylva
    Three challenges when designing for children’s everyday digital literacy2008Ingår i: Nordic Journal of Digital Literacy, ISSN 1891-943X, E-ISSN 1891-943X, Vol. 3, nr 2, s. 130-141Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We use the concept of digital literacy to refer to people’s competence of expressing themselves in computational form, and in this paper we specifically discuss the design of interactive technology aimed at letting children become digitally literate. A rarely discussed aspect of digital literacy in this respect concerns how it is supposed to take form in the context of improvised styles of use and interaction, resembling the kinds of activity commonly observed in kindergartens, school yards and centres for after-school activities. In such settings children often organize their own play activities, peers may go in and out of activities as they want, often without any necessary intervention by adult supervision. We align this kind of activity with the notion of ‘casual leisure’, and outline four basic challenges concerned with: a) a perspective on interaction, b) activity and context, c) the view of the user, and d) the character and role of the technology. We discuss these in relation to research attempting to design, evaluate, and make useful sense of children’s digital literacy in such activity. Our analysis identifies the sources of these challenges as due to expressions of tension between play and learning, between designers and users and a general striving for ‘hard fun’. The challenges and their consequences may be summarised as 1) the use of setting as allowing for spontaneous interactions, 2) the striving towards a participants’ perspective, 3) the incorporation of offline and social aspects into the design, and 4) the balancing of challenge with the easy and the accessible.

  • 7110.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Fernaeus, Ylva
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Three challenges when designing for children’s everyday digital literacy2008Ingår i: Nordic Journal of Digital Literacy., ISSN 1891-943X (Online) 0809-6724 (Print), Vol. 3, nr 2, s. 130-139Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We use the concept of digital literacy to refer to people’s competence of expressing themselves in computational form, and in this paper we specifically discuss the design of interactive technology aimed at letting children become digitally literate. A rarely discussed aspect of digital literacy in this respect concerns how it is supposed to take form in the context of improvised styles of use and interaction, resembling the kinds of activity commonly observed in kindergartens, school yards and centres for after-school activities. In such settings children often organize their own play activities, peers may go in and out of activities as they want, often without any necessary intervention by adult supervision. We align this kind of activity with the notion of ‘casual leisure’, and outline four basic challenges concerned with: a) a perspective on interaction, b) activity and context, c) the view of the user, and d) the character and role of the technology. We discuss these in relation to research attempting to design, evaluate, and make useful sense of children’s digital literacy in such activity. Our analysis identifies the sources of these challenges as due to expressions of tension between play and learning, between designers and users and a general striving for ‘hard fun’. The challenges and their consequences may be summarised as 1) the use of setting as allowing for spontaneous interactions, 2) the striving towards a participants’ perspective, 3) the incorporation of offline and social aspects into the design, and 4) the balancing of challenge with the easy and the accessible.

  • 7111.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Jacobsson, Mattias
    Ecofriends: designing for critical reflection using social voices2013Ingår i: interactions, ISSN 1072-5520, E-ISSN 1558-3449, Vol. 20, nr 1, s. 58-62Artikel i tidskrift (Refereegranskat)
  • 7112.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johansson, Carolina
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Some themes in bodily interaction2011Ingår i: Workshop on Embodied Interaction: Theory and Practice in HCI at CHI 2011, Vancouver, Canada, 2011Konferensbidrag (Övrigt vetenskapligt)
  • 7113.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Laaksolahti, Jarmo
    Nylander, Stina
    Experiencing art through kinesthetic dialogue2014Ingår i: DIS '14 Proceedings of the 2014 conference on Designing interactive systems, New York: ACM Press, 2014, s. 113-116Konferensbidrag (Refereegranskat)
    Abstract [en]

    From the analysis of how the Lega, a touch, motion, and location sensitive device that allows museum visitors to share their experiences, we identified kinaesthetic dialogue as an orienting concept for the understanding and the design of movement-based social interaction and experiences. It provides an analytical lens which captures critical aspects of kinaesthetic action in aesthetic experiences, as well as for better understanding of how users appropriate such artefacts in interaction. We believe that kinaesthetic dialog is a promising candidate for a meta-concept to capture interaction design knowledge in movement based technologies.

  • 7114.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Normark, Maria
    Södertörn University, School of Communication, Media and IT, .
    Rossitto, Chiara
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Understanding Agency in Interaction Design Materials2012Ingår i: CHI '12 Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems, ACM Press, 2012, s. 2499-2508Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper, we draw on the concept of agency in order to understand the process of how design materials ‘talk back’ to designers. In so doing, we illustrate the various levels at which agency can emerge in the context of intensive short-time prototyping sessions. It is often assumed in HCI that the designer is the agent that acts intentionally in the process. In this case, when viewing student projects, it became visible that design is to a large extent driven by characteristics of available materials. Recent theories on agency provide a way of analyzing the performative role of design materials as intra-actions between components in a given phenomenon, rather than meanings ascribed by the singular actions of the designers. The notion of agency provided a focus on how the emerging properties of materials and how they actively contributed to the way that design activity unfolds. The results have implications for the conceptual language of material interaction as well as theoretical approaches for the understanding materiality in interaction design.

  • 7115.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Nylander, Stina
    Designing for Movement: the Case of Sports2014Ingår i: MOCO '14: proceedings of the 1st International Workshop on Movement and Computing, June 16 - 17, 2014 Ircam, Paris, France, New York: ACM Press, 2014, s. 130-135Konferensbidrag (Refereegranskat)
    Abstract [en]

    We have identified six themes we identified as interesting for future work in movement based interaction design for sports: the central position of the subjective feeling, the core of sports is enough, feeling did not prevent injury, non-interpretive representations, the shortcomings of logging biodata, and temporality of feedback. The themes are grounded in technical explorations for golf and running and a set of interviews with athletes. Here, we outline findings from our work to illustrate these themes.

  • 7116.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Nylander, Stina
    Measures for collaborative running2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    We outline the notion of measures as a way of structuring the designing interactive sport technologies. Contrary to building fully working applications, measures suggest that designers should focus on the lower level measures of an sports activity and how users may incorporate these into their experiences. For this workshop we would like to explore the idea of collaborative measures in running.

  • 7117.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Nylander, Stina
    Snot, Sweat, Pain, Mud, and Snow: Performance and Experience in the Use of Sports Watches2015Ingår i: Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, Association for Computing Machinery (ACM), 2015, s. 2913-2922Konferensbidrag (Refereegranskat)
    Abstract [sv]

    We have conducted interviews with ten elite and recreational athletes to understand their experiences and engagement with endurance sport and personal and wearable sports technology. The athletes emphasized the experiential aspects of doing sports and the notion of feeling was repeatedly used to talk about their activities. Technology played both an instrumental role in measuring performance and feeding bio-data back to them, and an experiential role in supporting and enhancing the sport experience. To guide further interaction design research in the sports domain, we suggest two interrelated ways of looking at sports performances and experiences, firstly through the notion of a measured sense of performance, and secondly as a lived-sense of performance.

  • 7118.
    Tholander, Jakob
    et al.
    Stockholms universitet, Institutionen för data- och systemvetenskap.
    Ståhl, Anna
    Stockholms universitet, Institutionen för data- och systemvetenskap.
    Jacobsson, Mattias
    Stockholms universitet, Institutionen för data- och systemvetenskap.
    Schultz, Lisen
    Stockholms universitet, Stockholm Resilience Centre.
    Borgström, Sara
    Stockholms universitet, Stockholm Resilience Centre.
    Normark, Maria
    Stockholms universitet, Institutionen för data- och systemvetenskap.
    Kosmack-Vaara, Elsa
    Stockholms universitet, Institutionen för data- och systemvetenskap.
    But I Don’t Trust My Friends: Ecofriends - An Application for Reflective Grocery Shopping2012Ingår i: MobileHCI '12 Proceedings of the 2012 ACM annual conference on Human Computer Interaction With Mobile Devices and Services, New York: ACM Digital Library, 2012, s. 143-146Konferensbidrag (Refereegranskat)
    Abstract [en]

    The Ecofriends application was designed to encourage people to reflect on their everyday grocery shopping from social and ecological perspectives. Ecofriends portrays the seasonality of various grocery products as being socially constructed, emphasizing subjective dimensions of what it means for a product to be in season, rather than attempting to communicate it as an established fact. It provides the user with unexpected information (news, weather, blog posts and tweets) about the place where the product was grown, and visualises how the product’s popularity shifts throughout the year, among the user’s friends, among chefs and other food experts, and the general public. Key findings from users’ first encounters with the system are presented. In particular, we discuss aspects of trust, information fragments as catalysts, and how several of the participants were challenged by the system’s portrayal of season.

  • 7119.
    Tholander, Jakob
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Ståhl, Anna
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Jacobsson, Mattias
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Schultz, Lisen
    Stockholms universitet, Stockholm Resilience Centre.
    Borgström, Sara
    Stockholms universitet, Stockholm Resilience Centre.
    Normark, Maria
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Kosmack-Vaara, Elsa
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    But I Don’t Trust My Friends: Ecofriends - An Application for Reflective Grocery Shopping2012Ingår i: MobileHCI '12 Proceedings of the 2012 ACM annual conference on Human Computer Interaction With Mobile Devices and Services, New York: Association for Computing Machinery (ACM), 2012, s. 143-146Konferensbidrag (Refereegranskat)
    Abstract [en]

    The Ecofriends application was designed to encourage people to reflect on their everyday grocery shopping from social and ecological perspectives. Ecofriends portrays the seasonality of various grocery products as being socially constructed, emphasizing subjective dimensions of what it means for a product to be in season, rather than attempting to communicate it as an established fact. It provides the user with unexpected information (news, weather, blog posts and tweets) about the place where the product was grown, and visualises how the product’s popularity shifts throughout the year, among the user’s friends, among chefs and other food experts, and the general public. Key findings from users’ first encounters with the system are presented. In particular, we discuss aspects of trust, information fragments as catalysts, and how several of the participants were challenged by the system’s portrayal of season.

  • 7120. Thomas, Graham
    et al.
    Engström, Arvid
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Macq, Jean-Francois
    Niamut, Omar Aziz
    Shirley, Ben
    Salmon, Richard
    State-of-the-Art and Challenges in Media Production, Broadcast and Delivery2014Ingår i: Media production, delivery and interaction for platform independent systems: format-agnostic media / [ed] Oliver Schreer, Chichester: John Wiley & Sons, 2014, s. 5-73Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 7121.
    Thomas, Ilias
    Högskolan Dalarna, Akademin Industri och samhälle, Mikrodataanalys.
    Optimizing levodopa dosing routines for Parkinson’s disease2017Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    This thesis in the field of microdata analysis aims to introduce dose optimizing algorithms for the pharmacological management of Parkinson’s disease (PD). PD is a neurodegenerative disease that mostly affects the motor functions of the patients and it is characterized as a movement disorder. The core symptoms of PD are: bradykinesia, postural instability, rigidity, and tremor. There is no cure for PD and the use of levodopa to manage the core symptoms is considered the gold standard. However, long term use of levodopa causes reduced medication efficacy, and side effects, such as dyskinesia, which can also be attributed to overmedication. When that happens precise individualized dosing schedules are required. The goal of this thesis is to examine if algorithmic methods can be used to find dosing schedules that treat PD symptoms and minimize manifestation of side effects. Data from three different sources were used for that purpose: data from a clinical study in Uppsala University hospital in 2015, patient admission chart data from Uppsala University hospital during 2011-2015, and data from a clinical study in Gothenburg University during 2016-2017. The data were used to develop the methods and evaluate the performance of the proposed algorithms.The first algorithm that was developed was a sensor-based method that derives objective measurements (ratings) of PD motor states. The construction of the sensor index was based on subjective ratings of patients’ motor functions made by three movement disorder experts. This sensor-based method was used when deriving algorithmic dosing schedules. Afterwards, a method that uses medication information and ratings of the patients’ motor states to fit individual patient models was developed. This method uses mathematical optimization to individualize specific parameters of dose-effects models for levodopa intake, through minimizing the distance between motor state ratings and dose-effect curves. Finally, two different dose optimization algorithms were developed and evaluated, that had as input the individual patient models. The first algorithm was specific to continuous infusion of levodopa treatment, where the patient’s state was set to a specific target value and the algorithm made dosing adjustments to keep that patients motor functions on that state. The second algorithm concerned oral administration of microtables of levodopa. The ambition with this algorithm was that the suggested doses would find the right balance between treating the core symptoms of PD and, at the same time, minimizing the side effects of long term levodopa use, mainly dyskinesia. Motor state ratings for this study were obtained through the sensor index. Both algorithms followed a principle of deriving a morning dose and a maintenance dose for the patients, with maintenance dose being an infusion rate for the first algorithm, and oral administration doses at specific time points for the second algorithm.The results showed that the sensor-based index had good test-retest reliability, sensitivity to levodopa treatment, and ability to make predictions in unseen parts of the dataset. The dosing algorithm for continuous infusion of levodopa had a good ability to suggest an optimal infusion rating for the patients, but consistently suggested lower morning dose than what the treating personnel prescribed. The dosing algorithm for oral administration of levodopa showed great agreement with the treating personnel’s prescriptions, both in terms of morning and maintenance dose. Moreover, when evaluating the oral medication algorithm, it was clear that the sensor index ratings could be used for building patient specific models.

  • 7122.
    Thomsen, Michel
    Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Människa och Informationsteknologi (MI-lab).
    Beställarkompetens vid upphandling och utveckling av IT: Om kompetensframväxt i skuggan av kunskapsfragmentering2010Doktorsavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    Ever since IT started to become important and strategic assets in organizational practices, systems acquisitions have been a challenging and complex endeavor. There are seemingly never ending reports of unsuccessful IT acquisitions and lack of systems acquisition competence (beställarkompetens in Swedish). The aim of this thesis is to shed deeper light on what systems acquisition competence is about, and to present a framework for understanding its nature and premises in IT-projects. This thesis is grounded on three concurring problem areas. First, IT projects are notoriously prone to problems. This despite of decades of IS and ISD research on methods, project management, etc. While there is extensive knowledge about the development process, methods, techniques, tools, developers' skills and competence requirements, less is known about systems acquisition competence. Second, and following from the first, there are few established or generally agreed upon definitions, or substantial theories, of this distinct competency. Third, there is still a limited understanding of systems development from a learning or knowledge work point of view. This thesis deals with the concept of “beställarkompetens”, and theorizes the underlying empirical phenomena; knowledge work in IT project practices. Drawing on exploratory empirical work in an interpretive multiple case study, this thesis investigates 10 governmental IT projects, their outcomes and stakeholders perceptions of acquisition competency. This investigation was supported by theories of individual and organizational perspectives on learning, as well as knowledge theory, competence theory and systems development theory. This thesis presents a theoretical perspective suggesting that acquisition competence can be understood as an emergent quality of the system development process, that is, as dynamic rather than static knowledge. Further, it suggests that key stakeholders interaction, collaboration, situated learning and competence renewal are prime mechanisms to ensure sufficient systems acquisition competence and project performance. One important practical implication from this research is the identification of fragmentation of knowledge as a main threat to successful outcome of IT projects. The contribution is a theoretical framework useful for understanding “beställarkompetens” in systems development contexts, and a tentative theory of emergent competence.

  • 7123.
    Thomsen, Michel
    et al.
    Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Människa och Informationsteknologi (MI-lab).
    Åkesson, Maria
    Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Människa och Informationsteknologi (MI-lab).
    Teaching Strategies for Bringing Authenticity and Contextual Relevance to Information Systems Students2014Ingår i: ICERI2014 Proceedings: 7th International Conference of Education, Research and Innovation: November 17th-19th, 2014 — Seville, Spain / [ed] L. Gómez Chova, A. López Martínez, I. Candel Torres, Valencia: IATED Academy , 2014, s. 3373-3378Konferensbidrag (Refereegranskat)
    Abstract [en]

    Information Systems (IS) education deals with increasingly abstract and complex design challenges. Through digital innovation, the field continuously expands to new application areas. To develop design competence, students need to build up a repertoire of experiences enabling in-depth understanding of use context and design settings. Most students are young and have limited workplace experience.  These circumstances are challenging to IS education and teaching. In this paper we share experiences from teaching and designing IS education to be adapted to this situation. We propose three teaching strategies for bringing authenticity and contextual relevance to IS education; (1) teaching by doing together, (2) enable authentic experiences, and (3) critical formative dialogue.

  • 7124.
    Thomsson, Johan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik.
    Organizational effects and management of information security: A cross-sectoral case study of three different organizations2017Självständigt arbete på grundnivå (högskoleexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Denna uppsats jämför tre olika organisationer verksamma i olika sektorer, syftet är att undersöka effekterna  informationssäkerhet kan ha på en organisation men även hur dessa effkter är hanterade. 

    Med fokus på policy, träning av anställda men också medvetenheten så siktar denna uppsats på att svara på hur organisationer ser informationssäkerhet. Den kommer också att försöka hitta vad konsekvenserna av informationssäkerhet i det dagliga arbetet. 

    Resultatet från denna studie visar att ökad informationssäkerhet måste vara motiverat och i konstant dialog med användarna och implementera incitament för att öka motivet. Ökad informationssäkerhet kan ha en skadande effekt på effektiviteten, därför är det viktigt att organisationerna får den önskade effekten de vill av den ökade säkerheten. Genom mer transparans och tillgänglighet så medför det också att anställda har lättare att hitta rätt information som behös vilket är nödvändigt för effektivitet inom organisationen, men detta ökar även incitament för olika typer av attacker och misskötsel av information. 

  • 7125.
    Thorarinsson, Johann Sigurdur
    Högskolan i Skövde, Institutionen för kommunikation och information.
    ruleViz: visualization of large rule sets and composite events2008Självständigt arbete på grundnivå (kandidatexamen), 20 poäng / 30 hpStudentuppsats
    Abstract [en]

    Event Condition Action rule engines have been developed for some time now. Theycan respond automatically to events coming from different sources. Combination ofdifferent event types may be different from time to time and there for it is hard todetermine how the rule engine executes its rules. Especially when the engine is givena large rule set to work with. To determine the behavior is to run tests on the ruleengine and see the final results, but if the results are wrong it can be hard to see whatwent wrong. ruleViz is a program that can look at the execution and visually animatethe rule engine behavior by showing connections between rules and composite events,making it easier for the operator to see what causes the fault. ruleViz is designed toembrace Human Computer Interaction (HCI) methods, making its interfaceunderstandable and easy to operate.

  • 7126.
    Thorburn, Henrik
    Högskolan i Skövde, Institutionen för datavetenskap.
    Applying Bioinformatic Techniques to Identify Cold-associated Genes in Oat2002Självständigt arbete på avancerad nivå (magisterexamen)Studentuppsats
    Abstract [en]

    As the interest in biological sequence analysis increases, more efficient techniques to sequence, map and analyse genome data are needed. One frequently used technique is EST sequencing, which has proven to be a fast and cheap method to extract genome data. An EST sequencing generates large numbers of low-quality sequences which have to be managed and analysed further.

    Performing complete searches and finding guaranteed results are very time consuming. This dissertation project presents a method that can be used to perform rapid gene prediction of function-specific genes in EST data, as well as the results and an estimation of the accuracy of the method.

    This dissertation project applies various methods and techniques on actual data, attempting to identify genes involved in cold-associative processes in plants. The presented method consists of three steps. First, a database with genes known to have cold-associated properties is assembled. These genes are extracted from other, already sequenced and analysed organisms. Secondly, this database is used to identify homologues in an unanalysed EST dataset, generating a candidate-list of cold-associated genes. Last, each of the identified candidate cold-associative genes are verified, both to estimate the accuracy of the rapid gene prediction and also to support the removal of candidates which are not cold-associative.

    The method was applied to a previously unanalysed Avena sativa EST dataset, and was able to identify 135 candidate genes from approximately 9500 EST's. Out of these, 103 were verified as cold-associated genes.

  • 7127.
    Thorin, Johan
    Högskolan i Skövde, Institutionen för datavetenskap.
    Generating a textual representation of a relational model2001Självständigt arbete på avancerad nivå (magisterexamen)Studentuppsats
    Abstract [en]

    o aid the software and database developer in the development process, specialised software is needed, known as CASE-tools. To form a productive work environment, multiple CASE-tools should be able to cooperate with each other, as it is likely that a single tool cannot give full support for the whole development process. An aid in the integration of tools is that information is stored in a central repository, available for any tool that needs it. A problem which arises is that not all tools are capable of directly accesing the contents of the repository. Thus export procedures are needed that transforms the repository contents into a format that an external tool can read and understand. If these transformation procedures are specified directly in the implementation language, modification can be difficult or even impossible.

    This work proposes a general transformation model for storing rules in a repository. These rules operate on the information in a source model and transform it to a textual representation ready for export to external tools. An example ruleset is given that transforms an example relational model into SQL code.

  • 7128.
    Thorstensson, Eleonor
    Högskolan i Skövde, Institutionen för datavetenskap.
    Important properties for requirements reuse tools2002Självständigt arbete på avancerad nivå (magisterexamen)Studentuppsats
    Abstract [en]

    Requirements reuse is based upon the idea that it is possible to reuse requirements from previous software development projects. Requirements reuse leads to efficiency and quality gains in the beginning of the development process. One of the obstacles for requirements reuse is that there is a lack of appropriate tools for it. This work approaches this hinder by identifying properties that are important, that is, that the properties represent something that has so much influence that it should be in a requirements reuse tool. These identified properties may then guide the development when building requirements reuse tools.

    In order to find the properties this work is conducted as a literature study where both tool-specific and non-tool specific articles were searched in order to elicitate the properties. The work focuses on properties present in both tool-specific and non-tool specific articles. This makes the result more reliable since two different sources have identified them. 18 verified properties were identified through this work.

  • 7129.
    Thorstensson, Niklas
    Högskolan i Skövde, Institutionen för datavetenskap.
    A knowledge-based grapheme-to-phoneme conversion for Swedish2002Självständigt arbete på avancerad nivå (magisterexamen)Studentuppsats
    Abstract [en]

    A text-to-speech system is a complex system consisting of several different modules such as grapheme-to-phoneme conversion, articulatory and prosodic modelling, voice modelling etc.

    This dissertation is aimed at the creation of the initial part of a text-to-speech system, i.e. the grapheme-to-phoneme conversion, designed for Swedish. The problem area at hand is the conversion of orthographic text into a phonetic representation that can be used as a basis for a future complete text-to speech system.

    The central issue of the dissertation is the grapheme-to-phoneme conversion and the elaboration of rules and algorithms required to achieve this task. The dissertation aims to prove that it is possible to make such a conversion by a rule-based algorithm with reasonable performance. Another goal is to find a way to represent phonotactic rules in a form suitable for parsing. It also aims to find and analyze problematic structures in written text compared to phonetic realization.

    This work proposes a knowledge-based grapheme-to-phoneme conversion system for Swedish. The system suggested here is implemented, tested, evaluated and compared to other existing systems. The results achieved are promising, and show that the system is fast, with a high degree of accuracy.

  • 7130.
    Thorén, Claes
    Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för informatik och projektledning.
    Creating Real Imaginary Worlds: Mythopoeic Interaction and Immersion in Digital Games2007Rapport (Refereegranskat)
    Abstract [en]

    Mythopoeia is a term that refers to the making and renewal of myths. Myth is in itself a complicated concept that delicately balances concepts of truth and fiction. Myth refuses the designations of fact or lie, and instead operates beyond those terms. Rather, myths are metaphors, articulations of that which transcends the human psyche, of a type of knowledge that cannot be explained or contested. Throughout mankind's history, mythmaking, or mythopoeia, has been an important part of the legacy passed on between cultures and civilizations. The creation of narratives that are based on, or within particular mythologies, have the power to affect us and move us, in ways that non-fictional stories cannot, simply because myths are fictional truths. The impact of these kinds of stories can be gauged by examining their longevity and spread. What that tells us is that the way something is told is perhaps even more important than what is told. Currently, mythopoeic digital games not only offer the possibility of reading and hearing about faraway lands and galaxies, but a chance of partaking in the sustaining and making of new myths.



    This dissertation will explore and answer the question: how does the constrained nature of digital games, together with the improvised chaos of make believe, interact with, and benefit from (or become inhibited by) the further constraint of mythology? As new narrative technologies are introduced, they affect how myths are written, sustained and should be interacted with. Furthermore, with new visual media the level of detail has risen exponentially. No longer are myths carried by oral tradition, textual accounts, or even photography. The new myths come superimposed at us with photorealism, 24 photos per second, with full Dolby Digital 5.1 Surround Sound, and with vibrating haptic game controllers for true interactive affect and immersion. Altogether, the combination of mythopoeia and narrative technology becomes a very powerful medium for interactive storytelling of which we are only beginning to grasp the full potential

  • 7131.
    Thorén, Claes
    Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för informatik och projektledning.
    Finding a Usable Vocabulary for Privacy Enhancing Technology2003Ingår i: / [ed] Constantine Staphanidis, 2003Konferensbidrag (Refereegranskat)
    Abstract [en]

    The main purpose of the study was to assess the degree of understanding of privacy-related words among non-specialists. A major part of the test consisted of terms in English, because this language is dominant on most interntional sites. The results reveal not only a lack of understanding of some basic consepts but also a lack of understanding of the English language as such. The study should inform the design of user interfaces based on the Platform for Privacy Preferences Prototcol, P3P

  • 7132.
    Thorén, Claes
    Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för informatik och projektledning.
    Privacy negotiations in WAP browsing - some results based on Wizard-of-Oz tests2003Rapport (Refereegranskat)
  • 7133.
    Thorén, Claes
    Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för informatik och projektledning.
    The political economy of news value and the commodification of the general intellect2011Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
    Abstract

    Online, globalized commerce is fundamentally changing the dynamics of physical space and social space, opening up the market outside the enclosed area of focused marketing. Low distribution costs, and the ability to cast off the inherent limitations in stock and selection has become a lesser concern, allowing for digitally virtualized industries to focus on a global audience at a global scale. Today, in 2011, we can see this change transforming the market for online news in the post- industrial society. This transformation constitutes one part of the larger transformation from manual labour to intellectual labour that began in the early 1970s. From the perspective

    of the newspaper industry, many scholars agree that this on- going transformation offers many opportunities that may even enhance the relevance of newspapers. This paper applies Italian neo-Marxist thought, more specifically the concept of immaterial labour, to online news in order to reconceptualise the relationship between news production and consumption. Using these theories, this paper offers a comprehensive way of theorizing the commodification of user-generated content and the role of the consumer in news production and news value. Previous research has emphasized news value from the newspaper organizations perspective as news criteria; this paper instead emphasizes the reader as instrumental in the construction of news value, and furthermore how a social exchange process such as readers attention and user generated content brings about a new kind of immaterial labour. The purpose of this paper is to provide a theoretical framework for critically examining the commodification of online news. Online news commodification is approached as the result of a continuous, emergent reproduction of public discourse where value is determined by the amount of remediation cycles a piece of news is subject to during its lifespan, and how much subsequent public attention is generated. In order to improve understanding how the commodity of attention is constructed and sold, the framework emphasizes the differences between print and online news commodification. The result is a new theoretical framework which outlines a) how the concept of news value has evolved into digital news value; b) what factors dictate online value; c) the role of immaterial labour and user generated content in the production of that value

  • 7134.
    Thorén, Claes
    Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för informatik och projektledning.
    Time, perception and altered states of consciousness in "Call of Cthulhu: Dark Corners of the Earth"2007Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
    Abstract [en]

    Showing transitions between different states of consciousness, using sound and image, is an effective tool for creating a particular kind of narrative immersion. One might argue that conveying the inner state of a protagonist in a novel is purely a matter of skill with words and phrases, whereas with visual, aural and tactile technology at hand, storytelling has become a more intricate process.



    This paper will investigate a game text that illustrates Bergsonian notions of time, movement and affect through the sonic portrayal of altered states of consciousness. The example is Call of Cthulhu: Dark Corners of the Earth (2005), a digital game in the "survival horror" genre that exhibits temporal and spatial anomalies during certain segments of first-person gameplay. What is interesting about this text is that it has a sonic trigger unlocking the transition into the realm of postmodern temporal and spatial flux, and its succeeding connection with the realm of the virtual, or potential. In other words, it shows manifestations of altered states of mind that are brought on by stress. To map out the postmodern and metaphysical conditions under which these transitions occur, the theories regarding time, perception and movement outlined by Henri Bergson in Matter and Memory (1911) are the most useful. His theories have subsequently influenced French theorist Gilles Deleuze is concept of the timeimage. These concepts, together with Brian Massumi's theories on affect in Parables of the Virtual (2002) provide a comprehensive theoretical framework for an expanded Bergsonian philosophy of time, movement and affect

  • 7135.
    Thulin, Anders
    Linköpings universitet, Institutionen för teknik och naturvetenskap.
    ERP-system: framgångsfaktorer vid införandet2005Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats
    Abstract [sv]

    Syftet med uppsatsen har varit att undersöka framgångsfaktorer vid införandet av ERP-system i olika företag. Både kundernas och leverantörens syn på framgångsfaktorer vid införandet har klargjorts.

    Min empiriska undersökning har utförts på fem olika företag och jag har intervjuat totalt fem personer som samtliga haft mycket centrala roller vid ERP-införandena. Vid intervjuerna har jag använt mig av kvalitativ ansats där informanterna har fått berätta relativt fritt om vad de uppfattat kunna påverka framgången med införandet av ERP-systemen. Jag analyserade det insamlade materialet med hjälp av empirinär kvalitativ bearbetning, i form av innehållsanalys.

    Undersökningens resultat visar att kunderna och leverantören inte ser helt lika på vilka faktorer som bidrar till framgång. Det finns dock några tydliga samband mellan leverantörens och kundens syn på framgångsfaktorer. Samsyn ligger i att kunden ska göra en dokumenterad processmappning av verksamhetens före och efterläge vilket leder till att leverantörens arbete underlättas och implementeringen av systemet kommer igång snabbare. Vidare samsyn finns kring det faktum att kunden ska förbereda sig på den kommande förändringen genom att utbilda personalen i handhavandet av systemet samt ge personalen ökad förståelse kring förändringsproblematiken. Detta leder till större engagemang hos kunden och snabbare acceptans av systemet i företaget.

  • 7136.
    Thunberg, Hans
    Högskolan i Skövde, Institutionen för datavetenskap.
    Användarfall ur ett spårbarhetsperspektiv2000Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats
    Abstract [sv]

    I detta arbete har en undersökning genomförts angående hur spårbarhet upprätthålls vid användning av användarfall. Rapporten behandlar spårbarhet och användarfall separat för att belysa viktiga fakta inom båda områdena. Syftet med arbetet var att ta reda på hur olika tillvägagångssätt för att representera användarfall upprätthöll spårbarhet mellan olika krav, och mellan krav och dess ursprung. Informationen inom problemområdet samlades in genom en litteraturstudie. I undersökningen identifierades flera olika typer av spårbarhet, vilka sedan låg till underlag för identifiering av spårbarhet i användarfall. Undersökningen visade också att det finns flera olika sätt att representera användarfall, i allt från naturligt språk till formella diagram. Resultatet av undersökningen visade även att användningen av ett modelleringsspråk som Unified Modeling Language (UML), med inbyggda relationer och namnkonventioner, gjorde att spårbarhet kunde upprätthållas mellan olika krav, och mellan krav och dess ursprung. En begränsad spåbarhet identifierades i samband med att mindre formella representationer av användarfall använts.

  • 7137.
    Thuresson, Marcus
    Högskolan i Skövde, Institutionen för datavetenskap.
    Wrapping XML-Sources to Support Update Awareness2000Självständigt arbete på avancerad nivå (magisterexamen)Studentuppsats
    Abstract [en]

    Data warehousing is a generally accepted method of providing corporate decision support. Today, the majority of information in these warehouses originates from sources within a company, although changes often occur from the outside. Companies need to look outside their enterprises for valuable information, increasing their knowledge of customers, suppliers, competitors etc.

    The largest and most frequently accessed information source today is the Web, which holds more and more useful business information. Today, the Web primarily relies on HTML, making mechanical extraction of information a difficult task. In the near future, XML is expected to replace HTML as the language of the Web, bringing more structure and content focus.

    One problem when considering XML-sources in a data warehouse context is their lack of update awareness capabilities, which restricts eligible data warehouse maintenance policies. In this work, we wrap XML-sources in order to provide update awareness capabilities.

    We have implemented a wrapper prototype that provides update awareness capabilities for autonomous XML-sources, especially change awareness, change activeness, and delta awareness. The prototype wrapper complies with recommendations and working drafts proposed by W3C, thereby being compliant with most off-the-shelf XML tools. In particular, change information produced by the wrapper is based on methods defined by the DOM, implying that any DOM-compliant software, including most off-the-shelf XML processing tools, can be used to incorporate identified changes in a source into an older version of it.

    For the delta awareness capability we have investigated the possibility of using change detection algorithms proposed for semi-structured data. We have identified similarities and differences between XML and semi-structured data, which affect delta awareness for XML-sources. As a result of this effort, we propose an algorithm for change detection in XML-sources. We also propose matching criteria for XML-documents, to which the documents have to conform to be subject to change awareness extension.

  • 7138. Thurfjell, L.
    et al.
    Andersson, J.
    Pagnani, M.
    Jonsson, C.
    Hult, R.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Centrum för bildanalys. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Datoriserad bildanalys.
    Lundqvist, R.
    Wagner, A.
    Jacobsson, H.
    Larsson, S.
    Automatic Detection of Hypoperfused Areas in SPECT Brain Scans1998Ingår i: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 45, nr 4, s. 2149-2154Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Describes a method for automatic identification of areas with perfusion changes in SPECT brain images. An intersubject registration technique is used to stereotactically register images from a selected control group allowing for reference images to be created by averaging the subjects image data. An individual SPECT brain scan can be brought into registration with the reference image and comparison to the normal reference group can be made by subtracting the two volumes. Furthermore, since the variance in the reference group is known, a z-score image or an image coded in standard deviations, can be computed. The SPECT reference volume is defined in the same coordinate system as a brain atlas, and anatomical labeling of areas of interest is possible. The authors show results from the creation of an average image based on 11 individuals and from its comparison with pathological cases

  • 7139.
    Thurén, Mårten
    Linköpings universitet, Institutionen för systemteknik, Fordonssystem.
    Fault Isolation By Manifold Learning1985Självständigt arbete på avancerad nivå (yrkesexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    This thesis investigates the possibility of improving black box fault diagnosis by a process called manifold learning, which simply stated is a way of finding patterns in recorded sensor data. The idea is that there is more information in the data than is exploited when using simple classification algorithms such as k-Nearest Neighbor and Support Vector Machines, and that this additional information can be found by using manifold learning methods. To test the idea of using manifold learning, data from two different fault diagnosis scenarios is used: A Scania truck engine and an electrical system called Adapt. Two linear and one non-linear manifold learning methods are used: Principal Component Analysis and Linear Discriminant Analysis (linear) and Laplacian Eigenmaps (non-linear).Some improvements are achieved given certain conditions on the diagnosis scenarios. The improvements for different methods correspond to the systems in which they are achieved in terms of linearity. The positive results for the relatively linear electrical system are achieved mainly by the linear methods Principal Component Analysis and Linear Discriminant Analysis and the positive results for the non-linear Scania system are achieved by the non-linear method Laplacian Eigenmaps.The results for scenarios without these special conditions are not improved however, and it is uncertain wether the improvements in special condition scenarios are due to gained information or to the nature of the cases themselves.

  • 7140.
    Thyresson, Love
    Linköpings universitet, Institutionen för systemteknik.
    Supervision of Equipment in O&M Infrastructure2007Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats
    Abstract [en]

    The COMInf network is the infrastructure part of the operation and management system used for guarding the radio access networks developed by Ericsson. This thesis investigates the Ericsson COMInf network; identifies problems covering both functional as well as security aspects of the network and its current monitoring solution, and also presents a set of requirements and recommendations for a future network surveillance solution. As this thesis shows, the COMInf network today has limited functions regarding both network and security supervision.

    However, implementations of such solutions are possible due to the standardized components used in the network today. To improve the COMInf network, this thesis defines requirements and recommends a network surveillance solution which fulfills these requirements. It is also recommended to update some of the hardware currently in place for the COMInf network.

  • 7141.
    Thörn, Pär
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Framgångsfaktorer hos framgångsrika e-handelsföretag i klädbranschen2007Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats
    Abstract [sv]

    Omsättningen av försäljning av varor på Internet har ökat kraftigt de senaste åren. I takt med att försäljningen har ökat så har det även uppstått fler leverantörer/aktörer. Eftersom utbudet av leverantörer ökar innebär det att företagen måste differentiera sig i allt större utsträckning. Uppsatsen beskri-ver ett antal företag som framgångsrikt har lyckats att diffe-rentiera sig och vilka faktorer som dom själva anser har varit betydande för framgången.

  • 7142.
    Thörnryd, Louise
    et al.
    Högskolan i Jönköping, Internationella Handelshögskolan.
    Hansson, Maria
    Högskolan i Jönköping, Internationella Handelshögskolan.
    Anser kunden att ett WIS kan gör denne vis?: Kundens önskemål om informationsinnehåll i ett webbaserat informationssystem2006Självständigt arbete på avancerad nivå (magisterexamen), 10 poäng / 15 hpStudentuppsats
    Abstract [sv]

    Internet har en bred påverkan på den globala ekonomin och kan bland annat användas till webbaserade informationssystem (WIS). Dessa system har växt, från att ha använts som en marknadsplattform till att nu stödja alla moment i arbetet i en organisation. För att överleva i en turbulent konkurrensmarknad måste företag börja samarbeta med kunder istället för att endast samverka med dem. Kan ett IT-konsultföretag utnyttja ett WIS som ett medel för att hålla kontakten med existerande kunder och uppnå detta samarbete? Ett WIS skulle kunna stärka relationen mellan kund och leverantör och genom det ha en möjlighet att öka kundnyttan då det kan underlätta affärsprocesser och innebära att tjänster kan erbjudas på ett nytt sätt. WIS har dock tidigare kännetecknats av att de nästan aldrig används eller inte har de tänkta effekterna på verksamheten vilka förväntades. Orsaken till detta är att endast ett tekniskt perspektiv har tagits när de utvecklats och implementerats, utan hänsyn tagen till organisatoriska förhållanden. Med hänsyn till dessa fakta, är det möjligt att ett WIS kan öka kundnyttan i relationen mellan kund och leverantör? Hur ser kunden på ett WIS och vad skulle denne ha för önskemål gällande informationsinnehåll i ett sådant?

    Syftet med denna uppsats är att genom en kravanalys under en förstudie ta fram eventuella kundönskemål gällande informationsinnehåll i ett eventuellt WIS, med hänsyn taget till behovet av hur information kommuniceras i avsikten att öka kundnyttan i relationen mellan kund och leverantör.

    Förstudien tog en kvalitativ form och bestod av djupgående intervjuer med tio potentiella användare av ett WIS. Systemet skulle kunna fungera som en brygga mellan dem och deras IT-konsultföretag, Sigma. Samma konsultföretag är också uppdragsgivare till denna uppsats. Den teori som legat till grund för uppsatsen återspeglas mot fyra byggstenar, vilka kan urskiljas i syftet; informationsinnehåll, informationshantering, kundrelationer och kundnytta. Utöver dessa har vi även innefattat teori om WIS för att klargöra denna typ av system.

    Studien visade att det fanns kundönskemål om ett WIS i ett primärt syfte att hålla kontakten med Sigma. Den mest prioriterade funktionen var utbildning, såsom manualer till system som Sigma tidigare utvecklat åt kunderna. Därefter prioriterades projekthantering i form av bland annat uppföljning av projekt och gemensam dokumenthantering. Kunderna ansåg även att kundtjänst och felrapportering, samt en ordlista var bra funktioner att inkludera i ett WIS. Kunderna ansåg att informationshanteringen kunde bli mer strukturerad om ett WIS implementerades, men de flesta trodde att deras relation till Sigma skulle förbli oförändrad. Nyttan med ett WIS uppfattade kunderna främst kunde vara lättare åtkomst av information för både kund och Sigma, mer aktuell information och bättre support samt bättre service från Sigma.

  • 7143.
    Tidner, Frida
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media.
    Norman, Filippa
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media.
    Kritiska framgångsfaktorer för en bättre värld: en studie om införandet av beslutsstödsystem i ideella organisationer2016Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Att implementera ett beslutsstöd i en organisation är en resurskrävande och komplicerad uppgift där problem ofta uppstår. Syftet med denna studie är därför att identifiera de kritiska framgångsfaktorer som ideella organisationer bör ta hänsyn till när de implementerar ett beslutsstöd. Studien har genomförts med hjälp av intervjuer med ideella organisationer i välgörenhetssektorn. Erhållen empiri har analyserats utifrån Yeoh and Koronios Model of critical success factors for BI systems som ansats. Vår studie redogör hur och om Yeoh och Koronios (2010) faktorer har kommit att spela en betydande roll för de organisationer vi intervjuat. Resultatet av studien redovisar en uppsättning kritiska framgångsfaktorer vi lyckas identifiera i relation till vår ansats. Vi redovisar även vilka specifika framgångsfaktorer vi kunnat identifiera för ideella organisationer. 

  • 7144.
    Tigerholm, Jenny
    KTH, Skolan för datavetenskap och kommunikation (CSC), Beräkningsbiologi, CB.
    A-type Potassium Channels in Dendritic Integration: Role in Epileptogenesis2009Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    During cognitive tasks, synchronicity of neural activity varies and is correlated with performance. However, there may be an upper limit to normal synchronised activity – specifically, epileptogenic activity is characterized byexcess spiking at high synchronicity. An epileptic seizure has a complicated course of events and I therefore focused on the synchronised activity preceding a seizure (fast ripples). These high frequency oscillations (200–1000 Hz) have been identified as possible signature markers of epileptogenic activity and may be involved in generating seizures. Moreover, a range of ionic currents have been suggested to be involved in distinct aspects of epileptogenesis. Based on pharmacological and genetic studies, potassium currents have been implicated, in particular the transient A–type potassium channel (KA). Our first objective was to investigate if KA could suppress synchronized input while minimally affecting desynchronised input. The second objective was to investigate if KA could suppress fast ripple activity. To study this I use a detailed compartmental model of a hippocampal CA1 pyramidal cell. The ion channels were described by Hodgkin–Huxley dynamics.

    The result showed that KA selectively could suppress highly synchronized input. I further used two models of fast ripple input and both models showed a strong reduction in the cellular spiking activity when KA was present. In an ongoing in vitro brain slice experiment our prediction from the simulations is being tested. Preliminary results show that the cellular response was reduced by 30 % for synchronised input, thus confirming our theoretical predictions. By suppressing fast ripples KA may prevent the highly synchronised spiking activity to spread and thereby preventing the seizure. Many antiepileptic drugs down regulate cell excitability by targeting sodium channels or GABA–receptors. These antiepileptic drugs affect the cell during normal brain activity thereby causing significant side effects. KA mainly suppresses the spiking activity when the cell is exposed to abnormally high synchronised input. An enhancement in the KA current might therefore be beneficial in reducing seizures while not affecting normal brain activity.

  • 7145.
    Tigerström, Viktor
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media.
    Micropayments through cryptocurrency mining2016Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    The monetary policies of states and systems built upon them do not naturally allow transactions of a very small value, as the transaction costs exceeds the actual value of the transaction. These types of transactions are called micropayments. This is problematic as it removes the possibility to monetize content that has a valuation that is so low that the costs of the transaction exceeds the value of the content.

    In this thesis we aim to create a system that allows micropayments to monetize low value content. We do so by developing a design theory based on Gregor and Jones conceptual model for design theories within Information Systems research. The system that we develop will use the end users computational power to generate a value, by running a cryptocurrency miner.

    We present the background knowledge required to fully understand the presented design theory. Within the design theory, we present a theoretical framework to base systems on that enables micropayments through cryptocurrency mining. We also present a developed proof of work prototype that proves the validity of the theoretical framework.

    Lastly we discuss our design theory. We conclude that the design theory enables transactions of a very low value, such as 0,0001 \$ cents. Transactions of such small value is not possible with systems built upon states monetary policies. We also conclude that the proposed design theory can be further developed to function independently of cryptocurrency mining. Instead the value for the transaction could be generated through solving complicated problems if institutions are willing to pay for computational power to solve them.

  • 7146.
    Tigerström, Viktor
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media.
    Fahlgren, John
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media.
    Migrering av transaktionstunga legacy-system: En fallstudie hos Handelsbanken2014Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
  • 7147.
    Tillakoy, Savå
    Högskolan i Skövde, Institutionen för informationsteknologi.
    Organisering av informationsflödet i kommunsamordningscentralen (KSC): En studie kring informationsflödet mellan fyra kommuner i Skaraborg och ledningen i kommunsamordningscentralen2016Självständigt arbete på grundnivå (kandidatexamen), 15 poäng / 22,5 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Denna studie har undersökt hur informationsflödet ska organiseras vid en samverkan mellan kommunsamordningscentralen (KSC) samt de tekniska förvaltningarna i fyra kommuner i Skaraborg.Undersökningen har tillämpat en kvalitativ metodansats för att kunna besvara frågeställningen. Datainsamlingen skedde via semi-strukturerade intervjuer, en litteratursökning efter relevanta artiklar och böcker, samt en djupgående fallstudie.För att skildra teoretiska perspektiv i studien tillämpas även front-office back-office modellen, som indikerar på hur verksamhetens enheter är organiserade. Detta har varit relevant och återkommande i flera faser under arbetets gång. Vidare har även framgångsfaktorer inom business intelligence (BI) behandlats, för att kunna förtydliga hur organisationer ska ha möjlighet att anpassa sig till omvärldens ständiga krav.Uppsatsen har redogjort för vilka aspekter som bör beaktas i samband med en integrering av olika aktörer. Forskning har visat att informationsflödet i de berörda verksamheterna är ineffektivt i dagsläget. Relevansen av detta baseras på att personalen vill tillämpa tydligare tillvägagångssätt för informationshanteringen i kris samt vardagliga situationer. De prioriterar en hög integrering som syftar i att ha ständig kontakt mellan kommunerna och KSC. Däremot är de negativt inställda till en standardisering i informationsflödet vid de vardagliga situationerna, då deras arbetsuppgifter är varierande. Inom krissituationer krävs däremot standarder att följa för tillämpning av interaktionen.Upplägget för denna studie var att, i samband med business intelligence (BI), belysa behov av informationshantering för verksamheter som har en vision för en samverkan. 

  • 7148.
    Tillmar, Malin
    et al.
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Företagsekonomi. Linköpings universitet, Filosofiska fakulteten.
    Axelsson, Karin
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, VITS - Laboratoriet för verksamhetsinriktad systemutveckling. Linköpings universitet, Filosofiska fakulteten.
    Wihlborg, Elin
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Statsvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Lindgren, Ida
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Industriell arbetsvetenskap. Linköpings universitet, Tekniska högskolan.
    IT systems in Public Administration: A Multi-disciplinary Perspective on Trust2010Konferensbidrag (Övrigt vetenskapligt)
  • 7149.
    Tillquist, Pontus
    et al.
    Örebro universitet, Handelshögskolan vid Örebro Universitet.
    Zahirovic, Armin
    Örebro universitet, Handelshögskolan vid Örebro Universitet.
    Tillit i e-handel: Förhållandet mellan familjaritet och design2016Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
  • 7150. Timm, Felix
    et al.
    Sandkuhl, Kurt
    Högskolan i Jönköping, Tekniska Högskolan, JTH, Datateknik och informatik.
    Fellmann, Michael
    Towards A Method for Developing Reference Enterprise Architectures2017Ingår i: Tagungsband Wirtschafts Informatik 2017: 13. Internationale Tagung Wirtschaftsinformatik "Towards Thought Leadership In Digital Transformation" / [ed] Jan Marco Leimeister & Walter Brenner, Universität St.Gallen, 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    In most economic sectors organizations face rapid environmental changes like regulations. Such changes can force them to adjust both their organizational and operational structure. For instance, in the energy utility sector numerous developments moved German Public Utilities (PUs) towards a liberalized market. Nowadays PUs have to stay competitive while managing a heterogeneous information technology (IT) landscape. We address this demand for aligning business and IT by combining the holistic perspective of Enterprise Architecture Management (EAM) with the characteristic of reference modeling to reuse knowledge in a problem domain. Therefore, we utilize configurative reference modeling within Design Science Research (DSR). The artefact at hand is a method for developing a Reference Enterprise Architecture (R-EA), which is applied in the problem domain of PUs. Our contributions are the (i) adaptation of Configurative Reference Modelling (CRM) to develop a R-EA and (ii) a procedure how to elicit knowledge for R-EA development method.

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