Lecture 03 - Heuristic Evaluation
Heuristic Evaluation
Ananda Gunawardena Carnegie Mellon University Computer Science Department
Fall 2008
Background
? Heuristic evaluation is performed early in the development process to understand user requirements
? Heuristic evaluation addresses usability issues in the design
? Heuristic evaluation involves small sample of potential users of the product
Ref:
CMU-15-397 Fall 08
Nielson Heuristics
1. Visibility of system status 2. Match between system and the real world 3. User control and freedom 4. Consistency and standards 5. Error prevention 6. Recognition vs. recall 7. Flexibility and efficiency of use 8. Aesthetic and minimalist design 9. Error recovery 10. Help and documentation
H1: Visibility of System Status
searching database for matches
? The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.
? Simple and natural dialog
H2: Match between system and the real world
? The system should speak the users' language, with words, phrases and concepts familiar to the user, rather than system-oriented terms. Follow real-world conventions, making information appear in a natural and logical order.
? In Mac, drag disk to trash can to eject ? bad example
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