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Argumentation Models for Usability Problem Analysis in Individual and Collaborative Settings

Argumentation Models for Usability Problem Analysis in Individual and Collaborative Settings


Titill: Argumentation Models for Usability Problem Analysis in Individual and Collaborative Settings
Höfundur: Hvannberg, Ebba Thora   orcid.org/0000-0002-8041-5542
Law, Effie L.-C.
Halldórsdóttir, Gyða
Útgáfa: 2018-03-29
Tungumál: Enska
Umfang: 1-18
Háskóli/Stofnun: Háskóli Íslands
University of Iceland
Svið: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Deild: Iðnaðarverkfræði-, vélaverkfræði- og tölvunarfræðideild (HÍ)
Faculty of Industrial Eng., Mechanical Eng. and Computer Science (UI)
Birtist í: International Journal of Human–Computer Interaction;
ISSN: 1044-7318
1532-7590 (eISSN)
DOI: 10.1080/10447318.2018.1454142
Efnisorð: Usability testing; User studies; Empirical studies in HCI; Argumentation; Collaboration; Consolidation; Upplýsingatækni; Tölvunotkun; Samvinna
URI: https://hdl.handle.net/20.500.11815/959

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Tilvitnun:

Hvannberg, E. T., Law, E. L. C., & Halldorsdottir, G. (2018). Argumentation Models for Usability Problem Analysis in Individual and Collaborative Settings. International Journal of Human–Computer Interaction, 1-18. doi:10.1080/10447318.2018.1454142

Útdráttur:

Consolidating usability problems (UPs) from problem lists from several users can be a cognitively demanding task for evaluators. It has been suggested that collaboration between evaluators can help this process. In an attempt to learn how evaluators make decisions in this process, the authors studied what justification evaluators give for extracting UPs and their consolidation when working both individually and collaboratively. An experiment with eight novice usability evaluators was carried out where they extracted UPs and consolidated them individually and then collaboratively. The data were analyzed by using conventional content analysis and by creating argumentation models according to the Toulmin model. The results showed that during UP, extraction novice usability evaluators could put forward warrants leading to clear claims when probed but seldom added qualifiers or rebuttals. Novice usability evaluators could identify predefined criteria for a UP when probed and this could be acknowledged as a backing to warrants. In the individual settings, novice evaluators had difficulty in presenting claims and warrants for their decisions on consolidation. Although further study is needed, the results of the study indicated that collaborating pairs had a tendency to argue slightly better than individuals. Through the experiment novice evaluators’ reasoning patterns during problem extraction and consolidation as well as during their assessment of severity and confidence could be identified.

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