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  • 201.
    Halje, Karin
    et al.
    Region Östergötland, Local Health Care Services in Central Östergötland.
    Timpka, Toomas
    Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Health and Developmental Care, Center for Public Health. Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    Ekberg, Joakim
    Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Health and Developmental Care, Center for Public Health. Linköping University, Department of Medical and Health Sciences, Division of Community Medicine.
    Bång, Magnus
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Fröberg, Anders
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Eriksson, Henrik
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Towards mHealth Systems for Support of Psychotherapeutic Practice: A Qualitative Study of Researcher-Clinician Collaboration in System Design and Evaluation.2016In: International Journal of Telemedicine and Applications, ISSN 1687-6415, E-ISSN 1687-6423, Vol. 2016, article id 5151793Article in journal (Refereed)
    Abstract [en]

    We examined clinicians' and researchers' experiences from participation in collaborative research on the introduction of Internet and mobile information systems (mHealth systems) in psychotherapeutic routines. The study used grounded theory methodology and was set in a collaboration that aimed to develop and evaluate mHealth support of psychotherapy provided to young people. Soundness of the central objects developed in the design phase (the collaboration contract, the trial protocol, and the system technology) was a necessary foundation for successful collaborative mHealth research; neglect of unanticipated organizational influences during the trial phase was a factor in collaboration failure. The experiences gained in this study can be used in settings where collaborative research on mHealth systems in mental health is planned.

  • 202.
    Hall, Henning
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Lantz, Alexander
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Game mechanics’ effects on user retention2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In the era of smartphones and millions of apps just a few taps away, the effort required to retain the users in a particular app is increasing. Gamification is a relatively new tool to increase user engagement and is used in a wide range of apps belonging to categories far away from traditional games. Game mechanics, like achievements and leaderboards, belongs to the fundamentals of gamification. This master thesis examines how some of these game mechanics affect user retention. A custom made app game was implemented as an experiment to measure the effects of different game mechanics during a couple of months. The results indicate that game mechanics does affect some types of user retention but also that it might have no or negative impact of other types. In the end, the purpose of the app might play a central role in the decision making of picking the "right" mechanic. This demonstrates the importance of knowledge about game mechanics and their effects.

  • 203.
    Hammar, Karl
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. Tekniska Högskolan i Jönköping.
    Content Ontology Design Patterns: Qualities, Methods, and Tools2017Doctoral thesis, monograph (Other academic)
    Abstract [en]

    Ontologies are formal knowledge models that describe concepts and relationships and enable data integration, information search, and reasoning. Ontology Design Patterns (ODPs) are reusable solutions intended to simplify ontology development and support the use of semantic technologies by ontology engineers. ODPs document and package good modelling practices for reuse, ideally enabling inexperienced ontologists to construct high-quality ontologies. Although ODPs are already used for development, there are still remaining challenges that have not been addressed in the literature. These research gaps include a lack of knowledge about (1) which ODP features are important for ontology engineering, (2) less experienced developers' preferences and barriers for employing ODP tooling, and (3) the suitability of the eXtreme Design (XD) ODP usage methodology in non-academic contexts.

    This dissertation aims to close these gaps by combining quantitative and qualitative methods, primarily based on five ontology engineering projects involving inexperienced ontologists. A series of ontology engineering workshops and surveys provided data about developer preferences regarding ODP features, ODP usage methodology, and ODP tooling needs. Other data sources are ontologies and ODPs published on the web, which have been studied in detail. To evaluate tooling improvements, experimental approaches provide data from comparison of new tools and techniques against established alternatives.

    The analysis of the gathered data resulted in a set of measurable quality indicators that cover aspects of ODP documentation, formal representation or axiomatisation, and usage by ontologists. These indicators highlight quality trade-offs: for instance, between ODP Learnability and Reusability, or between Functional Suitability and Performance Efficiency. Furthermore, the results demonstrate a need for ODP tools that support three novel property specialisation strategies, and highlight the preference of inexperienced developers for template-based ODP instantiation---neither of which are supported in prior tooling. The studies also resulted in improvements to ODP search engines based on ODP-specific attributes. Finally, the analysis shows that XD should include guidance for the developer roles and responsibilities in ontology engineering projects, suggestions on how to reuse existing ontology resources, and approaches for adapting XD to project-specific contexts.

  • 204.
    Hammar, Karl
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Content Ontology Design Patterns: Qualities, Methods, and Tools - Supplementary Materials2017Data set
    Abstract [en]

    Data and code supporting Karl Hammar's 2017 PhD dissertation.

  • 205.
    Hammar, Karl
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. Information Engineering Group, Jönköping University, Sweden.
    Ontology Design Pattern Property Specialisation Strategies2014In: KNOWLEDGE ENGINEERING AND KNOWLEDGE MANAGEMENT, EKAW 2014, SPRINGER-VERLAG BERLIN , 2014, Vol. 8876, p. 165-180Conference paper (Refereed)
    Abstract [en]

    Ontology Design Patterns (ODPs) show potential in enabling simpler, faster, and more correct Ontology Engineering by laymen and experts. For ODP adoption to take off, improved tool support for ODP use in Ontology Engineering is required. This paper studies and evaluates the effects of strategies for object property specialisation in ODPs, and suggests tool improvements based on those strategies. Results indicate the existence of three previously unstudied strategies for ODP specialisation, the uses of which affect reasoning performance and integration complexity of resulting ontologies.

  • 206.
    Hammar, Karl
    et al.
    Jönköping University.
    Blomqvist, Eva
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Carral, David
    Technische Universität Dresden, Germany.
    van Erp, Marieke
    Fokkens, Antske
    Gangemi, Aldo
    van Hage, Willem Robert
    Hitzler, Pascal
    Janowicz, Krzysztof
    Karima, Nazifa
    Krisnadhi, Adila
    Narock, Tom
    Segers, Roxane
    Solanki, Monika
    Svátek, Vojtech
    Collected Research Questions Concerning Ontology Design Patterns2016In: Ontology Engineering with Ontology Design Patterns: Foundations and Applications / [ed] Pascal Hitzler, Aldo Gangemi, Krzysztof Janowicz, Adila Krisnadhi, Valentina Presutti, IOS Press, 2016, p. 189-198Chapter in book (Other academic)
  • 207.
    Hansson, Niclas
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Vidhall, Tomas
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Effects on performance and usability for cross-platform application development using React Native2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    A big problem with mobile application development is that the mobile market is divided amongst several platforms. Because of this, development time gets longer, more development skills are needed and the application gets harder to maintain. A solution to this is cross-platform development, which allows you to develop an application for several platforms at the same time. Since September 2015 the cross-platform framework React Native, created by Facebook, has been available for public use. This thesis evaluates React Native, for both Android and iOS, in regards to performance, platform code sharing as well as look and feel. An application was developed for both platforms, one version using the native language and one version using React Native. The different versions were compared through automated test scenarios to evaluate performance, manual code review for platform code sharing and with a user study to evaluate the look and feel. The results show promise as the user study shows that the React Native versions of the application have similar user experiences as their native counterparts without significantly affecting performance. The results also show that for the specified application about 75% of the React Native code could be used for both platforms, while it was easy to add platform-specific code.

  • 208.
    Hayer, Niklas
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Improvement of recognition percentage andspeed of ZXing based cellphone EAN-13 reader2013Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Prevas AB, a consulting company focused on industrial systems and  embedded systems, are looking to expand their mobile phone competency  and started two projects for this purpose. The rst is a diploma work to create a proof-of-concept barcode reader running on Symbian mobile phones, and the second is a student project for the new Innovative Programming bachelors degree to create a functioning price comparison application using IMS1 around the proof-of-concept created earlier.

    Both projects achieved their stated goals. However, due to none of the projects focusing on eciency or theoretical correctness the resulting application is dicult to start, runs slowly, leaks memory and is codewise bloated. These defects prevent the application from being realistically deployable, and a third project is started to clean up the application and improve it. This report describes the solutions employed in that third project

    The barcode reader in the application was split into two parts: First is the actual application written in C++ responsible for capturing images, sending them to the decoding server and displaying the result to the user. Second is  the decoding server, a separate application written in java that using a TCP-socket waits for images, decodes them, and returns the result.

    The primary goal of this project is to not only improve, but actually integrate the decoder into the C++ application, massively improving speed and memory usage. This report was written to highlight the lessons learned during this project, to describe the algorithms and methods used to improve the decoder and to be of use to anyone else writing time-constrained and heavily optimized barcode or pattern recognition code for Symbian devices.

  • 209.
    Hazel, White
    et al.
    University of Dundee, UK.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Wetter Edman, Katarina
    Center for Service Research, Karlstad.
    Pacenti, Elena
    Domus Academy, Milano, Itally.
    Mager, Birgit
    Köln International School of Design, Cologne, Germany.
    What Do Tomorrow’s Service Designers Need to Know?: What should a Masters Level Service Design Curriculum look like?2012Other (Other academic)
  • 210.
    Hecktor, Ylva
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Porting XDtools from NeOn Toolkit to Protégé2014Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    XDtools is a plugin originally used in the NeOn Toolkit ontology editor. XDtools is used as a tool for the ontology engineer when designing new ontologies or to add new parts to existing ontologies. The XDtools plugin was partially ported to another ontology editor, Protégé. This thesis describes the implementation and design choices made during the work with porting the plugin. A description of the parts that have been ported can be found in the report. It also contains the result of the testing and user study made after the implementation. Conclusions of those results and proposed changes to the plugin are also found in the report.

  • 211.
    Heimann Mühlenbock, Katarina
    et al.
    University of Gothenburg, Sweden.
    Johansson Kokkinakis, Sofie
    University of Gothenburg, Sweden.
    Liberg, Caroline
    Uppsala University, Sweden.
    af Geijerstam, Åsa
    Uppsala University, Sweden.
    Wiksten Folkeryd, Jenny
    Uppsala University, Sweden.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Kanebrant, Erik
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Falkenjack, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    A multivariate model for classifying texts’ readability2015In: Proceedings of the 20th Nordic Conference of Computational Linguistics / [ed] Beáta Megyesi, Linköping University Electronic Press, 2015, Vol. 109, p. 257-261, article id 033Conference paper (Refereed)
    Abstract [en]

    We report on results from using the multivariate readability model SVIT to classify texts into various levels. We investigate how the language features integrated in the SVIT model can be transformed to values on known criteria like vocabulary, grammatical fluency and propositional knowledge. Such text criteria, sensitive to content, readability and genre in combination with the profile of a student’s reading ability form the base to individually adapted texts. The procedure of levelling texts into different stages of complexity is presented along with results from the first cycle of tests conducted on 8th grade students. The results show that SVIT can be used to classify texts into different complexity levels.

  • 212.
    Heimann Mühlenbock, Katarina
    et al.
    Göteborgs Universitet, Sweden.
    Kanebrant, Erik
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Johansson Kokkinakis, Sofie
    Göteborgs Universitet, Sweden.
    Jönsson, Arne
    Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Liberg, Caroline
    Uppsala Universitet, Sweden.
    af Geijerstam, Åsa
    Uppsala Universitet, Sweden.
    Falkenjack, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Wiksten, Jenny
    Uppsala Universitet, Sweden.
    Studies on automatic assessment of students’ reading ability2014In: Proceedings of the Fifth Swedish Language Technology Conference (SLTC-14), 2014Conference paper (Refereed)
    Abstract [en]

    We report results from ongoing research on developing sophisticated measures for assessing a student’s reading ability and a tool for the student and teacher to create a profile of this ability. In the project we will also investigate how these measures can be transformed to values on known criteria like vocabulary, grammatical fluency and so forth, and how these can be used to analyse texts. Such text criteria, sensitive to content, readability and genre in combination with the profile of a student’s reading ability will form the base to individually adapted texts. Techniques and tools will be developed for selecting suitable texts, automatic summarisation of texts and automatic transformation to easy-to-read Swedish.

  • 213.
    Helg, Emil
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Silverhav, Kristoffer
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    A scalable back-end system for web games using a RESTful architecture2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The objective of this thesis was to design and implement a scalable and load efficient back-end system for web game services. This is of interest since web applications may overnight gain a significant increase in user base, because of viral sharing. Therefore designing the web application to service an increasing amount of users can make or break the application, in regard to keep the user base. Because of this, testing how well the system performs during heavy load can be used as a foundation when making a decision of when and where to scale up the application. The system was to be generically accessible through an Application Programming Interface (API) by the different game services. This was done using a RESTful architecture where emphasise was put on building the system scalable and load efficient. This thesis focuses on designing and implementing such a system, and how load testing can be used to evaluate this systems performance for an increasing amount of simultaneous clients using the web application. The results from load testing the implemented system was above the expectations, considering the hardware used when running the tests and hosting the system. The conclusion of this thesis is that by following REST when designing a web service, scalability becomes a natural part of how one would design the system.

  • 214.
    Hellgren, Charlotte
    et al.
    Totalförsvarets Forskningsinstitut.
    Johansson, Björn
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Reducing workload by navigational support in dynamic situations2012In: Proceedings of the 9th International ISCRAM Conference / [ed] L. Rothkrantz, J. Ristvej, Z. Franco, 2012, p. 1-9Conference paper (Refereed)
    Abstract [en]

    By presenting continuously updated heading and distance information on a small head-mounted display (HMD), as a supplement to a GPS-receiver, we examined if workload could be reduced and performance increased, when navigating in a demanding situation. The purpose was to present limited but sufficient information to facilitate navigation. The technique was tested on ground troops, but could also be used by rescue services and police in situations that require navigation in unknown environments. The main findings were that the workload was reduced in one aspect (during navigation) but increased in another (looking for foot placement). There were no clear differences in performance, except that participants stopped fewer times to look at the GPS-receiver if they had updated heading and distance information. This suggests that a supplement display with minimal information could be useful when navigating with a GPS-receiver in an unknown environment.

  • 215.
    Hellgren, Marcus
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Enbrant, Ida
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Vilken Open Source SIP-server lämpar sig bäst förAndroid?2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Denna studie tacklar ett av de problem som modern IP-telefoni brottas med, som gör att det är svårare att konkurrera med traditionell telefoni: fördröjningar på grund av otillräckliga Session Initiation Protocol-servrar (SIP). Genom tester av de viktigaste faktorerna jämförs fyra högaktuella Open Source SIP-servrar: OpenSIPS, Kamailio, FreeSWITCH och Yate. Avsikten är att underlätta valet av SIP-server för nya applikationer inom IP-telefoni, öka prestandan samt snabba på utvecklingen. Studien behandlar de intressantaste faktorerna vid val SIP, såsom användarvänlighet, hastighet, lagring av användardata samt ljudkvalité. Slutsatsen blev att Kamailio stod som klar segrare, med överlägsna resultat i jämförelse med övriga servrar, på de parametrar som valts ut. Skillnaderna var förhållandevis små prestandamässigt – det som verkligen avgjorde var främst hur avancerade servrarna var att installera, använda samt konfigurera.

  • 216.
    Helén, Ludvig
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Dahlberg, Robin
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Utvärdering av användbarhet hos LTE-modelleringsmjukvara2016Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Den nya generationens mobila nätverksteknologi som Long Term Evolution (LTE) blir allt mer komplex med avseende på struktur och kommunikation. Allt viktigare blir utbildningsverktyg som beskriver komponenter och kommunikationsstrukturer inom denna teknologi. Detta ställer samtidigt krav på att verktyget håller en hög nivå av användbarhet.

    I denna studie genomfördes en användbarhetsutvärdering av LTE-simuleringsmjukvaran SimuLTE. Studien utfördes genom en utvärdering med 12 målbaserade, heltäckande scenarion som nio deltagare med teknisk bakgrund fick genomföra. De målbaserade scenarierna baserades på problemområden som identifierats med hjälp av en heuristisk utvärdering av systemet. Utvärderingsinstrumentet System Usability Scale (SuS) användes för att skatta användarnas subjektiva värdering av SimuLTEs användbarhet. Utvärderingstillfällena avslutades med inviduella intervjuer med deltagarna.

    Resultatet från studien indikerade att SimuLTE kan vara ett lämpligt undervisningsverktyg. Deltagarna kunde slutföra de målbaserade scenarierna inom utsatta tidsramar, vilket indikerar att verktyget lämpar sig för målgruppen. Systemet erhöll en SuS-poäng på 68 poäng, vilket kan anses vara acceptabelt med tanke på den korta introduktionen till systemet. Intervjuerna visade att flertalet av deltagarna ställde sig positiva till den visuella representationen av LTE-strukturen. Identifierade brister i systemet som bör åtgärdas gäller främst systemstatus och återkoppling.

  • 217.
    Hemmati, Nima
    et al.
    Univ Tehran, Iran.
    Faili, Heshaam
    Univ Tehran, Iran.
    Maleki, Jalal
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Multiple System Combination for PersoArabic-Latin Transliteration2018In: COMPUTATIONAL LINGUISTICS AND INTELLIGENT TEXT PROCESSING, CICLING 2017, PT II, SPRINGER NATURE SWITZERLAND AG , 2018, Vol. 10762, p. 469-481Conference paper (Refereed)
    Abstract [en]

    In this paper, we model a PersoArabic to Latin transliteration system as grapheme-to-phoneme (G2P) and word lattice methods combined with statistical machine translation (SMT). Persian is an Indo-Iranian branch of the Indo-European family of languages belonging to Arabic script-based languages. Our transliteration model is induced from a parallel corpus containing the PersoArabic script of a Persian book together with its Romanized transcription in Dabire. We manually aligned the sentences of this book in both scripts and used it as a parallel corpus. Our results indicate that the performance of the system is improved by adding grapheme-to-phoneme and word lattice methods for out-of-vocabulary handling task into the monotonic statistical machine transliteration system. In addition, the final performance on the test corpus shows that our system achieves comparable results with other state-of-the-art systems.

  • 218.
    Herrera, Ivonne A.
    et al.
    Department of Production and Quality Engineering, Norwegian University of Science and Technology, Trondheim, Norway.
    Woltjer, Rogier
    Linköping University, Department of Computer and Information Science, CSELAB - Cognitive Systems Engineering Laboratory. Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Comparing a multi-linear (STEP) and systemic (FRAM) method for accident analysis2009In: Safety, Reliability and Risk Analysis: Theory, Methods and Applications. / [ed] Martorell, S., Guedes Soares, C., & Barnett, J., London, UK: Taylor & Francis Group, 2009, p. 19-26Conference paper (Refereed)
    Abstract [en]

    Accident models and analysis methods affect what accident investigators look for, which contributing factors are found, and which recommendations are issued. This paper contrasts the Sequentially Timed Events Plotting (STEP) method and the Functional Resonance Analysis Method (FRAM) for accident analysis and modelling. The main issues addressed in this paper are comparing the established multi-linear method (STEP) with the systemic method (FRAM) and evaluating which new insights the latter systemic method provides for accident analysis in comparison to the former established multi-linear method. Since STEP and FRAM are based on a different understandings of the nature of accidents, the comparison of the methods focuses on what we can learn from both methods, how, when, and why to apply them. The main finding is that STEP helps to illustrate what happened, whereas FRAM illustrates the dynamic interactions within socio-technical systems and lets the analyst understand the how and why by describing non-linear dependencies, performance conditions, variability, and their resonance across functions.

  • 219.
    Hilmersson, Jonas
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Designat för äldre: En utredning av interaktionsdesign för en äldre målgrupp2019Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [en]

    In order to compile a comprehensive representation of the available guidelines regarding interface design for an elderly audience, the available literature was scoured. A prototype interface was then produced based on the guidelines produced from this in combination with previously established needs among elderly that are subject to home care. Six subjects participated in a series of usability test that were implemented to evaluate the design of the prototype, along with complementary interviews that served to investigate the subject’s attitudes towards such a product that the prototype represents in general. The chosen method for these usability tests proved problematic and appropriate measures had to be implemented in order for the tests to produce adequate data. The results of the attuned method showcased an expected animosity towards the type of technology used in the tests while at the same time demonstrating the perceived redundancy in the product due to already established systems in use by the subjects as well as the requirements for such a product to be viable. That is primarily the extended ability to contact and/or communicate with caregivers that such a product offers.

  • 220.
    Hjelm, Wilhelm
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Grändevall, Patrik
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Sätt fler användare i centrum med åldersresponsiv design2017Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Under 2017 spås det att de första åldersresponsiva webbplatserna kommer publiceras. En webbplats som inte bara anpassar sig efter vilken enhet besökaren kommer från, utan även användarens ålder. I denna studie finner vi vilka problem som kan knytas till just användarens ålder.

  • 221.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Design value precedes business value2010In: Exchanging knowledge / [ed] Stefan Holmlid, Janne-Valtteri Nisula, Simon Clatworthy, Linköping: Linköping University Electronic Press, 2010, p. 121-125Conference paper (Refereed)
    Abstract [en]

    In this small essay I will explore the notion of the design value of business. Interpreted as merely a play with words; such a statement may be regarded as a bearer of little value. But; taken as seriously as the more common question; what the business value of design is; it turns into a critical examination of basic conceptions of what design is for. It also paves the way for the critical claim that design value precedes business value.

  • 222.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Designing for Resourcefulness in Service: Some Assumptions and Consequences2012In: Service Design with Theory: Discussions on Change, Value and Methods / [ed] Satu Miettinen, Anu Valtonen, Lapland University Press , 2012, p. 151-172Chapter in book (Refereed)
    Abstract [en]

    Research on design for service has mainly concerned itself with understanding the design process. In this research paper focus will be shifted towards service performances, based on a suggested model that can work as an aid to distinguish between different stages in the service development life-cycle and in co-creation of value. In a service performance, participants will enter with resources, competence and attitudes.

    What if we view every person in the performance of a service as resourceful? What are the assumptions? How does it fit with figures of thought in service and design research? Which consequences does it bring? The analysis will be based on situated cognition and socio-cultural theories. In contrast to activity theory, theories that highlight emergent activities and participation will be used. It is shown that, design research on service research can find a good foundation in theoretical concepts such as activity theory, zone of proximal development and legitimate peripheral participation, to direct future development of the area.

  • 223.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Implications for strategic arena design: Integrating digital interaction design and service design2009In: Design Research Journal, ISSN 2000-639X, E-ISSN 2000-3080, Vol. 2, p. 34-39Article in journal (Refereed)
    Abstract [sv]

    I produkt- och tjänsteutveckling har det under lång tid utvecklats designledningssystem. I mjukvaruindustrin, där digital interaktionsdesign är en dominerande designdisciplinen, har ett fåtal studier gjorts om design management. Merparten av dessa är gjorda i organisationer som utvecklar IT. Här föreslår vi att ett designledningssystem för digital interaktionsdesign i en organisation som framförallt använder IT måste utgå från att design är en del av den operativa kärnan, och därmed en angelägenhet för den strategiska ledningen.

  • 224.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    One approach to understand design's value under a service logic2014In: Design Management in an Era of Disruption, Boston, MA: Design Management Institute , 2014, p. 2633-2640Conference paper (Refereed)
    Abstract [en]

    The value of design has been an issue for several decades, where design promotion agencies and national statistics agencies have tried to find ways of measuring and evaluating the contribution of design. Many of these efforts collect their basic model from a traditional view of business value as being created in a value chain. However, when approaching value creation from a service logic perspective, these views are no longer feasible outsets to understand the value of design. In recent developments of business and market logics for service, there is no value before or beyond the value-in-use. In this paper, we develop an understanding of design’s value under a service logic.

    The foundation for this understanding is developed through revisiting the productivity paradox, through the three spheres of value creation, through resource integration and through an individual perspective on value.

    The conclusion is that design’s value is hinged on its contribution to enhancing intended value creation in the joint sphere, and indirect and inferred value created for continued independent value creation.

  • 225.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Service design and product-service systems2010In: 2nd CIRP IPS2 conference / [ed] Tomohiko Sakao, Tobias Larsson, Mattias Lindahl, 2010, p. 195-202Conference paper (Refereed)
    Abstract [en]

    Product designers have been the main design competence to be employed in product oriented businesses. When it comes to the design of Product-Service Systems, employing product design competences would be a conservative approach. Design theorist Buchanan identifies design orders spanning from graphic, over product and interaction, to systemic design, explaining important differences in perspctives. Contemporary studies on design disciplines show that differences are significant, and it becomes important to know how to select and direct adequate design work. Methods and tools service designers use are typically serviceblueprints, customer journeys, prototypes etc, all focused on processes and value-in-use, where product desigerns focus on form and function. In this paper we show how service designers relate to industrial design in the context of PSS. We review the profile of service designer and compare design disciplines. We conclude that service designers are well suited to deal with PSS design, with their focus on value in use, together with product designers. We also highlight that busineess need to develop competent judgement and design management to get the appropriate design competence.

  • 226.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    The first case experience of designing for service2012In: ServDes.2012, 2012Conference paper (Other academic)
  • 227.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    There's more to services than interaction2011In: Design for Services / [ed] Anna Meroni, Daniela Sangiorgi, Gower Publishing Ltd., 2011, p. 89-96Chapter in book (Other academic)
    Abstract [en]

    In Design for Services, Anna Meroni and Daniela Sangiorgi articulate what Design is doing and can do for services, and how this connects to existing fields of knowledge and practice. Designers previously saw their task as the conceptualisation, development and production of tangible objects. In the twenty-first century, a designer rarely `designs something' but rather `designs for something': in the case of this publication, for change, better experiences and better services.

  • 228.
    Holmlid, Stefan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Björndal, Petra
    ABB Corporate Research; Kungliga tekniska högskolan, Stockholm, Sweden.
    Mapping What Actors Know When Integrating Resources: Towards a Service Information Canvas2016In: Service design geographies: Proceedings of the ServDes.2016 Conference / [ed] Nicola Morelli, Amalia de Götzen and Francesco Grani, Linköping: Linköping University Electronic Press, 2016, Vol. 125, p. 544-550Conference paper (Refereed)
    Abstract [en]

    Even though service is described as actors integrating resources to achieve values, research on perspectives on knowledge that these actors have when integrating resources has not been part of service design research. In this paper we experiment with a technique, based in a service scenario, to map what actors know as a consequence of the events in the service process. We suggest that the technique called Service Information Canvas is valuable in a service design toolbox, and give access to understanding of service processes that is not currently available through other design tools.

  • 229.
    Holmlid, Stefan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Blomkvist, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Service Archetypes; a Methodological Consideration2015In: ServDes 2014: Service Futures / [ed] Daniela Sangiorgi,David Hands, Emma Murphy, Linköping, Sweden: Linköping University Electronic Press, 2015, p. 418-422, article id 043Conference paper (Refereed)
    Abstract [en]

    In practice based research, especially when working with non-research organisations, sometimes researchers face challenges related to the willingness of participants to openly share experiences outside the realms of the project. As a consequence there are methodological challenges with showing results, and working with knowledge verification. In this paper we suggest that some of these obstacles might be dealt with by using service archetypes.

  • 230.
    Holmlid, Stefan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Evenson, Shelley
    Carnegie Mellon University, School of Design, Pittsburgh, Pennsylvania.
    Bringing Service Design to Service Sciences, Management and Engineering2008In: Service Science, Management and Engineering Education for the 21st Century: Part 3 / [ed] Bill Hefley, Wendy Murphy, Springer-Verlag New York, 2008, p. 341-345Chapter in book (Refereed)
    Abstract [en]

    IBM has taken the lead in recognizing that college graduates need new skills to address business and technical issues in a service business environment. Because services depend critically on people working together and with technology to provide value for others, these new skills include the ability to integrate across traditional disciplinary areas to obtain globally effective solutions. Service Science, Management and Engineering (SSME) is one such approach to properly focusing education and research on services, and to preparing tomorrow s graduates to work in an expanding services economy. This contributed volume was developed from the IBM-hosted conference on October 5-7, 2006, designed to discuss the current status and foster the development and advancement of SSME. Contributions explore the ways SSME has been introduced into curricula, services research that is underway or is planned, and recommended actions for academia and governments to establish SSME as its own discipline.

  • 231.
    Hu, Hongzhan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Exploring the concept of feedback with perspectives from psychology and cognitive science2014Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [en]

    This study explores the concept of feedback from various perspectives in psychology and cognitive science. Specifically, the theories of ecological psychology, situated and Distributed Cognition, Cognitive Systems Engineering and Embodied cognition are investigated and compared. Cognitive Systems Engineering provides a model of feedback and related constructs, to understand human behavior in complex working environments. Earlier theories such as ecological psychology, considered feedback as direct perception. Situated cognition clearly inherits ideas from ecological psychology, whereas distributed cognition provides a deeper understanding of feedback through artifact use. Cognitive Systems Engineering provides a systematic view of feedback and control. This framework is a suitable perspective to understanding feedback in human-machine settings.

  • 232.
    Hård af Segerstad, Leo
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Stålnacke, Jessica
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Självbetjäningsteknologi i butiksmiljö: Hur interaktiva säljdisplayer kan möte konsumenternas behov och mål2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Denna studie syftar till att tydliggöra vilka behov och mål som användarna för en specifik interaktiv säljdisplay har och komma med potentiella förbättringsförslag. Metoder som använts för datainsamling är intervjuer av intressenter och målgruppen för produkten som legat till grund för skapandet av personor och scenarion som i sin tur använts för att ta fram krav och utveckling av användningstester. Resultatet visar på att några av de viktigaste produktkvalitérna som den interaktiva säljdisplayen bör ha är att den ska kännas enkel, tydlig och effektiv. Resultatet visar även på att målgruppens behov och mål för produkten varierar mycket beroende på demografi och användningstesterna att produkten i många fall inte möter användarnas krav. Slutsatserna redogör för att i de fall produkten inte möter användarnas behov behövs förbättrade funktioner, instruktioner och en mer genomarbetat design för att uppnå användarnas krav på produkten.

  • 233. Höglund, Fredrik
    et al.
    Berggren, Peter
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Using Shared Priorities to Measure Shared Situation Awareness2010In: Proceedings of ISCRAM 2010, 2010, p. 1-5Conference paper (Refereed)
    Abstract [en]

    Shared situation awareness is hard to measure, especially in operative environments such as crisis management. In this paper the purpose is to develop a novel method to measure to what extent the team has shared situation awareness that can be used in operations. 20 two person teams participated in a study where a dynamic and evolving tactical decision-making task was solved. Shared situation awareness, shared priorities, and team performance were assessed. The results show that the shared priorities measure in this study did not relate to shared situation awareness. Several methodological concerns was identified which could have affected the results. The measure did relate to subjective ratings of cooperation which is very interesting and it is suggested that the measure captured aspects of teamwork. The shared priorities measure was easy to employ, required little preparation, and is a promising addition to team research

  • 234.
    Hörberg, Karin
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Användbarhetstestning och designförbättringar på NPÖ Mobil – en applikation för vårdpersonal2012Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [sv]

    På uppdrag av HOW Solutions AB har användartester utförts på deras applikation NPÖ Mobil. Applikationen bygger på det webbaserade systemet NPÖ (Nationell Patientöversikt) och ger vårdpersonal (främst distriktssköterskor) tillgång till patienters journaler i sin smartphone eller surfplatta vid hembesök. Syftet med studien är att dels se om det finns någon skillnad mellan smartphone och surfplatta med avseende på lostness och tid men också att identifiera problem i systemet som behöver designas om. För att få en bra överblick över distriktssköterskors arbetssätt intervjuades två stycken. Dessa intervjuer låg sedan till grund för användartestet som utvecklades. Användartest gjordes på 8 sjuksköterskor och distriktssköterskor i Östergötland. Ingen statistisk skillnad mellan surfplatta och smartphone med avseende på lostness eller tid kunde påvisas. Däremot påvisades lostness i ett flertal funktioner i applikationen och även en del uppgifter som försöksdeltagarna inte lyckades lösa. Med grund i de resultaten togs en del designförslag fram för att förbättra applikationen.

  • 235.
    Ingmarsson, Magnus
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Creating & Enabling the Useful Service Discovery Experience: The Perfect Recommendation Does Not Exist2013Doctoral thesis, monograph (Other academic)
    Abstract [en]

    We are rapidly entering a world with an immense amount of services and devices available to humans and machines. This is a promising future, however there are at least two major challenges for using these services and devices: (1) they have to be found and (2) after being found, they have to be selected amongst. A significant difficulty lies in not only finding most available services, but presenting the most useful ones. In most cases, there may be too many found services and devices to select from.

    Service discovery needs to become more aimed towards humans and less towards machines. The service discovery challenge is especially prevalent in ubiquitous computing. In particular, service and device flux, human overloading, and service relevance are crucial. This thesis addresses the quality of use of services and devices, by introducing a sophisticated discovery model through the use of new layers in service discovery. This model allows use of services and devices when current automated service discovery and selection would be impractical by providing service suggestions based on user activities, domain knowledge, and world knowledge. To explore what happens when such a system is in place, a wizard of oz study was conducted in a command and control setting.

    To address service discovery in ubiquitous computing new layers and a test platform were developed together with a method for developing and evaluating service discovery systems. The first layer, which we call the Enhanced Traditional Layer (ETL), was studied by developing the ODEN system and including the ETL within it. ODEN extends the traditional, technical service discovery layer by introducing ontology-based semantics and reasoning engines. The second layer, the Relevant Service Discovery Layer, was explored by incorporating it into the MAGUBI system. MAGUBI addresses the human aspects in the challenge of relevant service discovery by employing common-sense models of user activities, domain knowledge, and world knowledge in combination with rule engines.

     The RESPONSORIA system provides a web-based evaluation platform with a desktop look and feel. This system explores service discovery in a service-oriented architecture setting. RESPONSORIA addresses a command and control scenario for rescue services where multiple actors and organizations work together at a municipal level. RESPONSORIA was the basis for the wizard of oz evaluation employing rescue services professionals. The result highlighted the importance of service naming and presentation to the user. Furthermore, there is disagreement among users regarding the optimal service recommendation, but the results indicated that good recommendations are valuable and the system can be seen as a partner.

  • 236.
    Ivanova, Valentina
    et al.
    Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, The Institute of Technology.
    Lambrix, Patrick
    Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, The Institute of Technology.
    Åberg, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Requirements for and Evaluation of User Support for Large-Scale Ontology Alignment2015In: The Semantic Web. Latest Advances and New Domains: 12th European Semantic Web Conference, ESWC 2015, Portoroz, Slovenia, May 31 -- June 4, 2015. Proceedings, Springer Science+Business Media B.V., 2015, p. 3-20Conference paper (Refereed)
    Abstract [en]

    Currently one of the challenges for the ontology alignment community is the user involvement in the alignment process. At the same time, the focus of the community has shifted towards large-scale matching which introduces an additional dimension to this issue. This paper aims to provide a set of requirements that foster the user involvement for large-scale ontology alignment tasks.Further, we present and discuss the results of a literature study for 7 ontology alignments systems as well as a heuristic evaluation and an observational user study for 3 ontology alignment systems to reveal the coverage of the requirements in the systems and the support for the requirements in the user interfaces.

  • 237.
    Jaber, Zeinab
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Enklare sjukvårdsrådgivning med mobil app: designförslag och utvärdering2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    There are different options for seeking healthcare advice, such as calling a health care provider or by searching for information about different symptoms online. The most common option people today use for healthcare advice, is by calling ta healthcare center, mainly 1177. There is however no easy accessible option for mobile technology. This study serves to examine the needs and possibilities for a healthcare service application for a mobile phone. Furthermore, the study serves to examine what additional features such service shall hold. Based on whether there is a need and what function there should exist, the study serves to develop a mobile application that meets the need and requirements.

    The result of the study, shows that there is a need for an additional option for healthcare services. The needs can be achieved through the development of a mobile application. Furthermore, the results indicates which features deemed to be necessary by the potential users. The design process, proceeds from a goal-oriented design method and where the application is developed along the key design principles of a behaviour-change system. The study also has defined target group that serves as the primary users. The primary users serves as the primary tools for the design development, and has been used for data collection through interviews and testing sessions.

    Based on the results, a prototype could be designed, developed and also evaluated. This led to a final design of the product that also reached up to the users’ needs and expectation.

  • 238.
    Jakobsson, Julia
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Saab AB.
    Larsson, Elin
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Saab AB.
    Konceptstudie för nästa version Brand- och räddningsinstruktion2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    When accidents happen it’s important that the airport's fire fighters feel safe with the knowledge that they have. This is why it’s important that they receive the information that is needed so that they know how to act when an aircraft crashes. In addition to being an aid during critical situations the Fire and Rescue Instruction, FRI, is a digital data bank, which is used to educate new fire fighters, and also to keep fully trained fire fighters up to date. Users perceive the FRI as a boring website which isn't designed for them. Which is why this master thesis will investigate how the FRI should be designed to improve the user experience and increase the learning effect.

    The process, which has been implemented during this thesis, is an iterative user-centered design process. The work began with a contextual inquiry to determine the users' needs. Their needs were then used to develop a user interface concept that followed Saab's graphic profile. The users’ then evaluated the concept to make sure that it met the users' key requirements. The concept was visualized with an interactive prototype.

    A positive user experience can be accomplished by structuring the visualizations with its corresponding text, you should also ensure that no information is concealed and apply a consistent navigation structure. This study has identified the importance of the interaction between information and visualizations to promote the learning effect and usability.

  • 239.
    Jandinger, Magnus
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    On a Need to Know Basis: A Conceptual and Methodological Framework for Modelling and Analysis of Information Demand in an Enterprise Context2016Doctoral thesis, monograph (Other academic)
    Abstract [en]

    While the amount of information, readily available to workers in information- and knowledge intensive business- and industrial contexts, only seem to increase with every day, those workers continue to have difficulties in finding and managing relevant and needed information despite the numerous technical, organisational, and practical approaches promising a remedy to the situation. In this dissertation it is claimed that the main reason for the shortcomings of such approaches are a lack of understanding of the underlying information demand people and organisations have in relation to performing work tasks. Furthermore, it is also argued that while this issue, even with a better understanding of the underlying mechanisms, still would remain a complex problem, it would at least be manageable.

    To facilitate the development of demand-driven information solutions and organisational change with respect to information demand the dissertation sets out to first provide the empirical and theoretical foundation for a method for modelling and analysing information demand in enterprise contexts and then presents an actual method. As a part of this effort, a conceptual framework for reasoning about information demand is presented together with experiences from a number of empirical cases focusing on both method generation and -validation. A methodological framework is then defined based on principles and ideas grounded in the empirical background and finally a number of method components are introduced in terms of notations, conceptual focus, and procedural approaches for capturing and representation of various aspects of information demand.

    The dissertation ends with a discussion concerning the validity of the presented method and results in terms of utility, relevance, and applicability with respect to industrial context and needs, as well as possible and planned future improvements and developments of the method.

  • 240.
    Jansson, Björn
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Procedural Generation in Gravel2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This thesis is concerned with  procedural generation in a genre of games where it is not very common; 2D  physics-based  puzzle  games.  I  will  explore which  different  methods  of  procedural  generation that  will  work  with  this  kind  of  game,  if  any.  If there  is  an  easy  way  to  implement  procedural generation  it  could cut down on the game designers work  load  significantly,  which  would  allow  more content to be produced at a higher pace.

  • 241.
    Jansson, Tobias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Design and implementation of a timeline for the Web2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Visuzalizing time information using a timeline has been done for over 250 years.

    Using a timeline can assist users in making sense of time data which could otherwise be hard to understand.

    A timeline has been implemented at Ida Infront, and its purpose is to help managers understand how cases are progressing in a case management system created by Ida Infront. The timeline is designed using usability methods and has been evaluated with regards to its usability and how it interacts.

    Results show that there are a number of things that can increase usability and add meaningful interaction, such as using icons to collect similar data into one point and adding filtering capabilities so that users can find interesting data faster.

  • 242.
    Jesper, Segeblad
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Putting a spin on SPINN: Representations of syntactic structure in neural network sentence encoders for natural language inference2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis presents and investigates a dependency-based recursive neural network model applied to the task of natural language inference. The dependency-based model is a direct extension of a previous constituency-based model used for natural language inference. The dependency-based model is tested on the Stanford Natural Language Inference corpus and is compared to the previously proposed constituency-based model as well as a recurrent Long-Short Term Memory network. The experiments show that the Long-Short Term Memory outperform both the dependency-based models as well as the constituency-based model. It is also shown that what is to be explicitly represented depends on the model dimensionality that one use. With 50-dimensional models, more explicit representations of the dependency structure provides higher accuracies, and the best dependency-based model performs on par with the LSTM. Higher model dimensionalities seem to favor less explicit representations of the dependency structure. We hypothesize that a smaller dimensionality requires a more explicit representation of the relevant linguistic features of the input, while the explicit representation becomes limiting when a higher model dimensionality is used.

  • 243.
    Joelsson, Sophie
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Developing a web application: a usability approach2015Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The objective of this thesis was to develop a user-friendly web application for quality annotation of text translations. Prototypes were designed in an iterative process to allow for continuous feedback from potential users. The iterative method drew attention to the frequently occurring difference between the developer’s and the user’s perception of the design, and was helpful to meet the high usability requirements. This thesis’ work included users throughout the process with user evaluation of each prototype, to ensure the usability of the final product. 

  • 244.
    Johan, Linder
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Arvola, Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    IPA in UX Research: Interpretative Phenomenological Analysis in a User Experience Design Practice2017Conference paper (Refereed)
    Abstract [sv]

    One approach to user experience (UX) is phenomenology, but there are no well-defined methods for how to conduct UX research using phenomenology, especially not in a professional design practice. One well-defined approach developed in psychology is Interpretative Phenomenological Analysis (IPA), which in this paper is adapted to professional UX research practice. The adaptation is put to test in the case of understanding how newly-arrived immigrants to Sweden experience a start-up service that introduce them to the job market. Contributions and shortcomings of the method in the views of professional UX researchers and designers are documented and discussed. It is concluded that IPA contributes to UX research by investigating both experience and meaning, and by providing holistic insights appropriate for service design and the fuzzy front-end of innovation.

  • 245.
    Johannsen, Fabian
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Progressive Web Applications and Code Complexity: An analysis of the added complexity of making a web application progressive2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Web applications have a common code base across multiple platforms, but have previously lacked some core features compared to native applications. However, recent web technology advancements have, in terms of functionality and user experience, reduced the gap between the two development approaches. Applications that leverages these technology advancements are dubbed progressive web applications, or PWA. This thesis explores the concepts of PWA and how it, in terms of code complexity, affects an Angular web application. The results show that implementing considered PWA features does not excessively increase the size of the application and that the overall added complexity is low. The complexity of PWA lies in all the new technology concepts, which are probably unfamiliar to most developers. To reduce this complexity, automated PWA tooling shows great promise, and using Angular PWA tooling when building Angular applications seems to minimize this complexity.

  • 246.
    Johansson, Anthon
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    How can Atlassian products be modified to reduce the average time usage for common tasks2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Software tools such as Build systems and project management tools are sometimes notwell designed when it comes to usability. This paper investigates the possibility of creatingcustom solutions for the three Atlassian products Jira, Confluence, and BitBucket, in orderto increase the efficiency when performing common tasks at the Atlassian administration atSaab AB. It was discovered that the main issue was performing reoccurring project-accesspermission audits, which was a very repetitive task with many manual steps involved.The solution to the issue was a Python script that, through the use of the Atlassian RESTAPI, could collect all the necessary information automatically and present it in a readablesummarized view. The amount of manual steps was significantly decreased to just a fewsteps which made a huge difference for the Atlassian administrators at Saab AB.

  • 247.
    Johansson, Björn
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Agility in Command and Control - Functional Models of Cognition2014In: Assessing command and control effectiveness: Dealing with a changing World / [ed] P. Berggren, S. Nählinder, E. Svensson, Ashgate, 2014, p. 177-193Chapter in book (Other academic)
  • 248.
    Johansson, Björn
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Hellgren, Charlotte
    Oskarsson, Per-Anders
    Svensson, Jonathan
    Hand-Held Support for Spatial Awareness for the Dismounted Soldier2014In: HCI Posters 1 / [ed] C. Stephanidis, 2014, Vol. 1, p. 335-340Conference paper (Other academic)
    Abstract [en]

    This contribution presents a summary of activities performed in an ongoing military research project aiming at investigating the impact of navigational support on spatial awareness. Investigated tasks are e.g. indication of direction to objects beyond visual range with and without navigational support, display size, performance time, and use of GPS device in darkness. The results indicate that the ability to keep track of targets in the terrain without a technical aid is very poor, but with a GPS device targets can be indicated with relatively high precision. Precision on target indication is slightly better with a larger display, it seems possible to indicate as fast as 5 seconds with a GPS device without impairments of precision, and a GPS device can be used for target indication in darkness. Spatial ability measured by PTSOT can discriminate important aspects of spatial ability with direct relevance for navigation and target indication.

  • 249.
    Johansson, Björn
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Hellgren, Charlotte
    Oskarsson, Per-Anders
    Totalförsvarets Forskningsinstitut.
    Svensson, Jonathan
    Totalförsvarets Forskningsinstitut.
    Supporting situation awareness on the move - the role of technology for spatial orientation in the field2013In: Proceedings of the 10th International ISCRAM Conference / [ed] T. Comes, F. Fiedrich, S. Fortier, J. Geldermann, T. Müller, 2013, p. 442-451Conference paper (Refereed)
    Abstract [en]

    The study presented in this paper has investigated how technology can support spatial awareness when moving in wooded terrain. By “spatial awareness”, we refer to the ability to point in the approximate direction of several objects while navigating in unknown terrain. The ability to localize objects in the terrain has importance for emergency operations, for example firefighting and search and rescue operations. A field experiment was conducted with two conditions, one with technical support and one without. The results show that technical support in terms of GPS, digital maps and electronic compass can dramatically improve the ability to accurately indicate directions to objects. Further, findings concerning use of tests on spatial orientation to predict the ability to indicate directions to objects in the terrain when having no technical support are presented.

  • 250.
    Johansson, Björn
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Lundberg, Jonas
    Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
    Engineering safe aviation systems: balancing resilience and stability2009In: Handbook of Aviation human Factors / [ed] John A. Wise, V. David Hopkin and Daniel J. Garland, CRC Press, 2009, 2, p. 6-1-6-8Chapter in book (Refereed)
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