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Heuristic Principles for Usability
Although other heuristics may be useful, this section lists the original Experts in usability and accessibility have compiled lists of principles - often expressed as questions - to be applied in performing heuristic analysis. The following are recommended by the Fluid project:
- Heuristic Analysis - A System Checklist is a useful table of principles, created by Deniese Pierotti of Xerox Corporation.
- Usability Evaluation Questions is a list developed by members of the Fluid project.
- 10 Nielsen and Molich Usability heuristics
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- is a well known set of principles, presented in a form refined by Jakob Nielsen
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- .
For illustration purposes, here is an excerpt of the Nielsen and Molich list:
Visibility of system status
The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.
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Help and documentation
Even though it is better if the system can be used without documentation, it may be necessary to provide help and documentation. Any such information should be easy to search, focused on the user's task, list concrete steps to be carried out, and not be too large.More detail on each of the principles can be found in be found in an expanded list from Deniese Pierotti of Xerox, which itemizes specific things to look for when evaluating a system with Nielsen's Heuristics. See Heuristic Evaluation - A System Checklist.
Heuristic Principles for Accessibility
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