UIEvaluations

UIEvaluations - UserInterfaceEvaluation Based on a...

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Object-Oriented Analysis 1 User Interface Evaluation Based on a presentation by Dr. Gregory D. Abowd
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Object-Oriented Analysis 2 Evaluation Techniques for doing evaluation formative vs. summative with or without end-users using a variety of prototypes Specifically, Heuristic evaluation, Cognitive walkthrough, think aloud observation
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Object-Oriented Analysis 3 Heuristic Evaluation Have a small set of evaluators independently examine an interface and judge its compliance with recognized usability principles. Mainly formative and qualitative Can be used on pen/paper prototypes
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Object-Oriented Analysis 4 Origins of Heuristic Evaluation Jakob Nielsen Also see Web http://www.useit.com/papers/heuristic/ 1994 case study showed savings of 48 times cost of H.E.
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Object-Oriented Analysis 5 Procedure 1. Gather inputs 2. Independent evaluation 3. Debriefing/Collection 4. Severity rating
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Object-Oriented Analysis 6 Inputs Evaluation team (train on method) Familiarize with domain, establish heuristics and rating scales Storyboards/scenarios showing sufficient interface details.
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Object-Oriented Analysis 7 How many evaluators?
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Object-Oriented Analysis 8 Independent evaluation Judge prototype against set of heuristics What heuristics? Nielsen list, http://www.useit.com/papers/heuristic/heuristic_list.html Last lecture principles Specialized heuristics Mankoff, Jennifer, Anind K. Dey, Gary Hsieh, Julie Kientz, Scott Lederer, Morgan Ames, (2003). "Heuristic Evaluation of Ambient Displays." In Proceedings of CHI 2003. 8 pages. UI Evaluation Toolkit http://www.stcsig.org/usability/resources/toolkit/toolkit.html
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Object-Oriented Analysis 9 What is a usability bug? Whatever you think is! Don’t fret worthiness or origin of problem at this point. Identify problems, not solve them!
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Object-Oriented Analysis 10 Debriefing and Collection Organize all found problems Discussions now can filter out important problems.
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Object-Oriented Analysis 11 Severity Analysis Based on frequency (how often might this occur) impact (what is the business effect of this problem) persistence (how does it impact users i.e. 1 time problem then learn work around, or constant bother) market impact (effect on potential sales)
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UIEvaluations - UserInterfaceEvaluation Based on a...

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