Zahn, Carmen

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Zahn
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Carmen
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Zahn, Carmen

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2013 - 201916
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Autor:in: Mateescu, Magdalena ×

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  • Vorschaubild nicht verfügbar
    Publikation
    Collaboration on large interactive displays: a systematic review
    (Taylor & Francis, 2019) Zahn, Carmen; Mateescu, Magdalena; Pimmer, Christoph; Klinkhammer, Daniel; Reiterer, Harald [in: Human–Computer Interaction]
    Large Interactive Displays (LIDs), such as tabletops or interactive walls, are promising innovations, which are increasingly used to support co-located collaboration. Yet the current evidence base on the impact of LID use on collaborative processes and outcomes, and associated influencing factors, is fragmented, particularly in comparison with other media. To address this gap, a systematic review was carried out in the databases Web of Science, Psych.Info, ACM, Elsevier, JSTOR and Springer and in the ACM CHI conference database. A corpus of 38 articles with experimental study designs met the eligibility criteria and was analyzed in-depth. With regard to collaboration processes, the findings suggest a relatively clear advantage of the use of LIDs over classic forms of collaboration, in particular over single-user environments (e.g. laptops). With attention to collaborative outcomes, positive effects of LIDs were identified for knowledge gains and social encounters, and mixed effects for task-related outcomes. The analysis further shows relevant influencing factors of LID, such as the separation of personal and joint work spaces and the deployment of horizontal instead of vertical displays. Conceptual and practice implications are discussed.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Collaboration on large interactive displays: A systematic review
    (Taylor & Francis, 2019) Mateescu, Magdalena; Pimmer, Christoph; Zahn, Carmen; Klinkhammer, Daniel; Reiterer, Harald [in: Human-Computer Interaction]
    Large Interactive Displays (LIDs), such as tabletops or interactive walls, are promising innovations, which are increasingly used to support co-located collaboration. Yet the current evidence base on the impact of LID use on collaborative processes and outcomes, and associated influencing factors, is fragmented, particularly in comparison with other media. To address this gap, a systematic review was carried out in the databases Web of Science, Psych.Info, ACM, Elsevier, JSTOR and Springer and in the ACM CHI conference database. A corpus of 38 articles with experimental study designs met the eligibility criteria and was analyzed in-depth. With regard to collaboration processes, the findings suggest a relatively clear advantage of the use of LIDs over classic forms of collaboration, in particular over single-user environments (e.g. laptops). With attention to collaborative outcomes, positive effects of LIDs were identified for knowledge gains and social encounters, and mixed effects for task-related outcomes. The analysis further shows relevant influencing factors of LID, such as the separation of personal and joint work spaces and the deployment of horizontal instead of vertical displays. Conceptual and practice implications are discussed.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Coding and Counting- Frequency Analysis for Group Interaction
    (Cambridge University Press, 2018) Rack, Oliver; Zahn, Carmen; Mateescu, Magdalena; Brauner, Elisabeth; Boos, Margarete; Kolbe, Michaela [in: The Cambridge Handbook of Group Interaction Analysis]
    The basic idea of this chapter is to provide an introduction to the design and conduct of frequency analysis for group research. Frequency analysis has been commonly used for decades in several disciplines and fields of research as stand alone procedures (e.g., configural frequency analysis in clinical psychology, Lienert, 1971). But, despite of specialised articles in experimental psychology journals (e.g., Wickens, 1993), the description of frequency analysis as a specific method within group studies (e.g., coding group interaction data like chat protocols, then calculating frequencies across categories) is rare. This is remarkable, because the interests in frequency analysis nowadays have moved towards to the procedures of implementing its results as indices for further analysis, e.g. for the investigation of relationships between group processes like collaboration and outputs like performance by using the results of frequency analysis as inputs in inferential statistics. In this vein, this chapter attempts to highlight the most important options to use frequency analysis in group research as a relevant brick to gap the bridge between qualitative and quantitative methods (mixed method research). Furthermore, we fold into our descriptions and discussions empirical examples to illustrate the prerequisites, requirements and consequences of using frequency analysis in the field of group research. Finally, we clarify ways to present the results of frequency analysis for analyzing group data.
    04A - Beitrag Sammelband
  • Vorschaubild nicht verfügbar
    Publikation
    Enhancing Agile Team Collaboration Through the Use of Large Digital Multi-touch Cardwalls
    (Springer, 2017) Kropp, Martin; Anslow, Craig; Mateescu, Magdalena; Burkhard, Roger; Vischi, Dario; Zahn, Carmen [in: Agile Processes in Software Engineering and Extreme Programming : 18th International Conference, XP 2017, Cologne, Germany, May 22-26, 2017, Proceedings]
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    Enhancing agile team collaboration through the use of large digital multi-touch cardwalls
    (Springer, 2017) Kropp, Martin; Anslow, Craig; Mateescu, Magdalena; Burkhard, Roger; Vischi, Dario; Zahn, Carmen; Baumeister, Hubert; Lichter, Horst; Riebisch, Matthias [in: Agile Processes in Software Engineering and Extreme Programming]
    04B - Beitrag Konferenzschrift
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    Publikation
    aWall: Agile Collaboration using Large Digital Multi-Touch Cardwalls
    (12/2016) Anslow, Craig; Burkhard, Roger; Kropp, Martin; Mateescu, Magdalena; Vischi, Dario; Zahn, Carmen [in: IMVS Fokus Report]
    Despite the availability of many digital agile board tools, most co-located agile software teams still use physical cardboards for their daily standup meetings. This is due to the fact that existing digital agile boards lacks supporting a collaborative workspace, direct interaction for the whole team in meetings, or making project information directly visible. In this paper we present aWall, a digital agile cardwall designed for the highly collaborative agile work style using large multi-touch wall displays. The effectiveness of aWall was evaluated in a user study with eleven software practitioners. Our findings indicate that aWall enables and encourages team work due to the large size of the wall, accessibility and visibility of large amounts of information, and possibility of customization of the interface. Based on this work, we suggest that augmenting digital cardwalls with large interactive touch technology and new interaction concepts is a useful way to support effective collaborative agile software development processes.
    01B - Beitrag in Magazin oder Zeitung
  • Vorschaubild nicht verfügbar
    Publikation
    Potenziale kollaborativer Medien: Eine empirische Untersuchung am Beispiel interaktiver Tische
    (2016) Mateescu, Magdalena; Zahn, Carmen; Klinkhammer, Daniel; Rack, Oliver; Reiterer, Harald; Weiße, Nora [in: 50. Kongress der Deutschen Gesellschaft für Psychologie (DGPs)]
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    Erfolgreiche Zusammenarbeit in agilen Teams. Ergebnisse einer Interview-Studie über Zusammenarbeit, Kommunikation und Koordination sowie den Einsatz von Tools in agilen Software Projekten in der Schweiz
    (12/2015) Burkhard, Roger; Greiwe, Stephanie; Kropp, Martin; Mateescu, Magdalena; Zahn, Carmen
    Kommunikation und Interaktion spielen eine zentrale Rolle in agilen Teams. Kombiniert mit den agilen Prinzipien wie selbst-bestimmte Teams, vollständige Kundeneinbindung oder sehr häufi-gen Releases ergeben sich neue Herausforderungen an die Zusammenarbeit im agilen Team. Doch wie sehen diese in der Praxis Schweizer Unternehmen und Firmen aus? Wie kommunizieren und kooperieren erfolgreiche agile Teams in der Realität? Neben der quantitativen Swiss Agile Study , www.swissagilestudy.ch, zum Einsatz agiler Methoden in der Softwareentwicklung im Jahr 2012 hat sich die Fachhochschule Nordwestschweiz im Sommer 2013 in einem Forschungsprojekt mittels einer Interview Studie vertiefend mit der Thematik der agilen Teamarbeit in der Schweiz befasst. Dazu wurden Gruppeninterviews in elf agil arbeitenden IT-Unternehmen in der Schweiz realisiert.
    05 - Forschungs- oder Arbeitsbericht
  • Vorschaubild nicht verfügbar
    Publikation
    aWall: A Socio-Cognitive Tool for Agile Team Collaboration using Large Multi-Touch Wall Systems
    (ACM, 2015) Kropp, Martin; Mateescu, Magdalena; Burkhard, Roger; Zahn, Carmen; Vischi, Dario [in: ITS' 15 Proceedings of the 2015 International Conference on Interactive Tabletops & Surfaces (ITS 2015)]
    Agile methods emphasize highly interactive and close collaboration within teams and among stakeholders. Due to still missing adequate digital tools, agile teams use mostly physical artefacts like wallboards and story cards. In this paper, we present aWall, an agile team collaboration tool for large multi-touch wall systems. aWall was designed based on empirical user research using new interaction and visualization concepts to support and foster the highly collaborative and communicative agile work style. The application is based on web technology and can be used in both co-located and distributed setting. The implemented prototypes were validated with end-users in a user workshop.
    04B - Beitrag Konferenzschrift
  • Vorschaubild nicht verfügbar
    Publikation
    aWall: A Socio-Cognitive Tool for Agile Team Collaboration using Large Multi-Touch Wall Systems
    (ACM, 2015) Kropp, Martin; Mateescu, Magdalena; Burkhard, Roger; Zahn, Carmen; Vischi, Dario [in: ITS' 15 Proceedings of the 2015 International Conference on Interactive Tabletops & Surfaces]
    Agile methods emphasize highly interactive and close collaboration within teams and among stakeholders. Due to still missing adequate digital tools, agile teams use mostly physical artefacts like wallboards and story cards. In this paper, we present aWall, an agile team collaboration tool for large multi-touch wall systems. aWall was designed based on empirical user research using new interaction and visualization concepts to support and foster the highly collaborative and communicative agile work style. The application is based on web technology and can be used in both co-located and distributed setting. The implemented prototypes were validated with end-users in a user workshop. In the demo, users can experience the interaction and visualization concepts hands-on.
    04B - Beitrag Konferenzschrift