Fraunhofer-Institut für Angewandte Informationstechnik FIT

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  • Publication
    Tango vs. HoloLens: A comparison of collaborative indoor AR visualisations using hand-held and hands-free devices
    ( 2019)
    Riedlinger, U.
    ;
    Oppermann, L.
    ;
    Prinz, W.
    In this article, we compare a Google Tango tablet with the Microsoft HoloLens smartglasses in the context of the visualisation and interaction with Building Information Modeling data. A user test was conducted where 16 participants solved four tasks, two for each device, in small teams of two. Two aspects are analysed in the user test: the visualisation of interior designs and the visualisation of Building Information Modeling data. The results show that the Tango tablet is surprisingly preferred by most users when it comes to collaboration and discussion in our scenario. While the HoloLens offers hands-free operation and a stable tracking, users mentioned that the interaction with the Tango tablet felt more natural. In addition, users reported that it was easier to get an overall impression with the Tango tablet rather than with the HoloLens smartglasses.
  • Publication
    User involvement in software development processes
    ( 2016)
    Alvertis, I.
    ;
    Koussouris, S.
    ;
    Papaspyros, D.
    ;
    Arvanitakis, E.
    ;
    Mouzakitis, S.
    ;
    Franken, S.
    ;
    Kolvenbach, S.
    ;
    Prinz, W.
    Costs of software development and deployment are decreasing due to numerous open source projects and novel Cloud-based services (IaaS, PaaS, SaaS), but competition increases due to lowering entry barriers. The need to bring developers closer to their customer becomes vital for success, especially involving users into the very early stages of software development. This allows detecting flaws of conceptual and design nature, minimize unnecessary development costs, and warrant relevance for customers. This paper presents the CloudTeams methodology and platform that aim to bridge this gap, based on an existing groupware system supporting the notion of collaborative software development.
  • Publication
    CloudTeams: Bridging the gap between developers and customers during software development processes
    ( 2015)
    Franken, S.
    ;
    Kolvenbach, S.
    ;
    Prinz, W.
    ;
    Alvertis, I.
    ;
    Koussouris, S.
    The main challenge addressed by the EU-funded project CloudTeams is bridging the communication and collaboration gap between software developers and end users during the whole software development process in order to develop better accepted software. CloudTeams solves the problem by bringing together software developers and end users into one platform, thus providing a seamless environment where interaction with customers will feel natural and will validate the software product. It integrates popular software development tools and services and mashes them up with user participation practices. A sustainable community of end users provides feedback to the development teams at any stage of the software development cycle, from idea generation to beta testing. Through the introduction of novel collaboration and engagement methodologies, CloudTeams facilitates the development process and delivers Software-as-a-Service offerings, which are tested and verified with customers. In this paper we present the CloudTeams approach and the results of the first round of face-to-face interviews with stakeholders of the two user groups on the underlying challenges related to CloudTeams.
  • Publication
    From groupware to social media - Extending an existing shared workplace system with social media features
    ( 2012)
    Prinz, W.
    ;
    Kolvenbach, S.
    This paper investigates major differences between organizational cooperation and social media platforms to identify ways for the evolution of a cooperation platform into a social media platform. This analysis starts with an investigation of existing social media application to identify important characteristics related to organizational cooperation. This is followed by mapping these to traditional cooperation platforms using BSCW for illustration.
  • Publication
    Der Digitale Untersetzer - Änderung des Trinkverhaltens durch Reflexion
    ( 2011)
    Buchholz, H.
    ;
    Prinz, W.
    Das im vorliegenden Text beschriebene persuasive System soll Menschen davon überzeugen, ihr Trinkverhalten zu ändern. Anhand eines ersten Prototyps wurde getestet, ob eine einfache Rückmeldung über die täglich aufgenommene Menge an Flüssigkeit ausreicht. Erste Tests gaben Hinweise darauf, dass die Installation des Systems bei jedem Nutzer zu einer Auseinandersetzung mit dem Thema führte. Zumindest kurzfristig war bei allen Probanden eine Änderung zu erkennen. Nach einer gewissen Zeit schien sich ein Großteil der Testpersonen jedoch an das System zu gewöhnen. Die direkte Wirkung des Systems ging zurück. Eine einfache Darstellung der Tagesaufnahme an Flüssigkeit, scheint in diesem Zusammenhang, langfristig keinen direkten Einfluss nehmen zu können.
  • Publication
    Enhancing collaboration in communities of professionals using a Living Lab approach
    ( 2011)
    Budweg, S.
    ;
    Schaffers, H.
    ;
    Ruland, R.
    ;
    Kristensen, K.
    ;
    Prinz, W.
    The Living Lab approach within the multi-year integrated project ECOSPACE focused on community building and active user involvement in the process of developing, introducing and evaluating new collaboration concepts and tools. This paper reports about implementing and evaluating our adapted Living Labs framework to facilitate innovation in collaborative work environments to enhance professional communities. The pursued implementation approach is considered as a strategy for innovation, change and adoption. We use a perspective of socio-technical systems to explain the change-catalyzing role of our framework and findings.
  • Publication
    Towards a reference architecture for collaborative work environments
    ( 2010)
    Peristeras, V.
    ;
    Martínez-Carreras, M.A.
    ;
    Gomez Skarmeta, A.F.
    ;
    Prinz, W.
    ;
    Nasirifard, P.
    In this article the authors provide an overview of the Ecospace reference architecture which constitutes a reusable high-level representation for building Collaborative Work Environments that are interoperable, context-aware and highly personalised. Based on this architecture they have already developed a number of prototypes that at the same time use and validate the proposed design. Here they present an example, specifically a prototype that demonstrates interoperability and context-awareness as important features of the Ecospace architecture.
  • Publication
    From collaborative tools to collaborative working environments
    ( 2010)
    Prinz, W.
    ;
    Martínez-Carreras, M.A.
    ;
    Pallot, M.
  • Publication
    CERA: A collaborative environment reference architecture for interoperable CWE systems
    ( 2009)
    Peristeras, V.
    ;
    Fradinho, M.
    ;
    Lee, D.
    ;
    Prinz, W.
    ;
    Ruland, R.
    ;
    Iqbal, K.
    ;
    Decker, S.
    In this paper, we present the collaborative environment reference architecture (CERA) with the aim of supporting collaborative work environment (CWE) interoperability. The vision of CERA is to support users who are engaged in common collaborative spaces with similar work processes to work and collaborate seamlessly together, despite their use of proprietary CWE tools and systems. The underlying CERA concepts, design principles, and models are discussed, as well as the architectural decisions made as a result of the extended requirements analysis exercise. Furthermore, we present results from the Ecospace ( http://www.ip-ecospace.org/ ) project as an example of a CERA instantiation which focuses on facilitating users collaborating across different CWE systems, namely BSCW, NetWeaver, and BC. We conclude with future research and implementation directions.