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      The Damage Index: An aggregation tool for usability problem prioritisation.

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      Proceedings of HCI 2010 (HCI)

      Human Computer Interaction

      6 - 10 September 2010

      Usability, Consolidation, Aggregation, Usability Problems, Severity, Evaluator Effect

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          Abstract

          The aggregation of usability problems is an integral part of a usability evaluation. Numerous problems can be revealed and given that there are usually limited resources for fixing or redesigning the system then prioritisation of the problem set is essential. This paper examines the prioritisation of usability problems from a single heuristic evaluation and multiple heuristic evaluations of Questionmark Perception, a computer assisted assessment application widely used within educational institutions. Two different methods for prioritisation are critiqued; one based on the severity ratings alone and the other on a Damage Index formula proposed by the authors. The results highlight the difference in ranking of problems dependent upon the approach taken. The Damage Index offers a method of systematically prioritising the usability problems in a repeatable way, removing subjectivity from this process, therefore offering improvements over just the reliance upon the severity ratings alone.

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          Most cited references 9

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          Heuristic evaluation of user interfaces

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            A mathematical model of the finding of usability problems

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              Enhancing the explanatory power of usability heuristics

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                Author and article information

                Contributors
                Conference
                September 2010
                September 2010
                : 54-61
                Affiliations
                CEPS

                University of Central Lancashire, Preston
                Chici

                University of Central Lancashire, Preston
                Article
                10.14236/ewic/HCI2010.9
                © Gavin Sim et al. Published by BCS Learning and Development Ltd. Proceedings of HCI 2010, University of Abertay, Dundee, UK

                This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

                Proceedings of HCI 2010
                HCI
                24
                University of Abertay, Dundee, UK
                6 - 10 September 2010
                Electronic Workshops in Computing (eWiC)
                Human Computer Interaction
                Product
                Product Information: 1477-9358BCS Learning & Development
                Self URI (journal page): https://ewic.bcs.org/
                Categories
                Electronic Workshops in Computing

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