Chapter 26 Inspections of the user interface

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Presentation transcript:

Chapter 26 Inspections of the user interface

Heuristics – set of design principles Heuristic Inspection (Heuristic evaluation) UIDE Chapter 26

Creating the Evaluation Plan for Heuristic Inspection Choosing the Heuristics The Inspectors Should be experts in HCI Expert in the system’s domain UIDE Chapter 26

Nielson’s Heuristics (1993) Visibility of system status Match between system and real world User control and freedom Consistency and standards Error prevention Recognition rather than recall Flexibility and efficiency of use Aesthetic and minimalist design Help users recognize, diagnose, and recover from errors Help and documentation UIDE Chapter 26

Conducting a Heuristic Inspection Task Descriptions The Location of the Evaluation Session Collecting Evaluation Data Analysis of Heuristic Inspection Data UIDE Chapter 26

Interpretation of Heuristic Inspection Data Benefits and Limitations of Heuristic Evaluations UIDE Chapter 26

Benefits: Limitations Less expensive than user observation Inspectors may suggest solutions Helps reveal obvious defects Limitations Do not involve real users Differ in levels of importance of features Inspectors may have built-in bias Relies on inspectors’ skills UIDE Chapter 26

Variations of Usability Inspection Participatory Heuristic Evaluations Users as inspectors Guideline Reviews Uses guides other than sets of heuristics Standards Inspections – i.e., may use ISO 9241 Cognitive Walkthrough – discovers users mental processes Peer Reviews – review by colleague UIDE Chapter 26