IAT 432 Lecture Notes - Lecture 2: User Interface, Mental Model
29 Apr 2015
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Document Summary
Use of inspectors-people to engage with the interface. E. g. usability engineers, end users, domain experts (not trained with usability but are familiar with the field) Steps: inspect interface alone (prevents influences/biases, compare notes afterwards (i. e. synthesis and analysis) Requires many users in order to get accurate results (i. e. 95%) 3 to 5 users will still give good results (i. e. 75%) Pick tasks which are appropriate with the interface. Choose heuristics that tie into the results desired. Might also require a domain briefing for evaluators to understand the interface. Carrying out the task and recording when a heuristic is broken (might also consider rating the severity of breakage) Accumulate all the information and compile it into a list of recommendations. Nielsen"s ten heuristics: visibility of system status. Feedback about what the system is doing and its mode (i. e. its state in the processs: match between system and real world.
