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![“le mieux est l'ennemi du bien"
(The best is the enemy of the good)
[Voltaire 1764]
Heuristic Evaluation is a Discount Usability Technique, It is not costly like using
Regular Usability Principles, but helps in finding several usability problems in your
Product.](https://image.slidesharecdn.com/delhiitprofessionals-130211012829-phpapp02/85/Delhi-it-professionals-5-320.jpg)
Uploaded bySushil Bharwani
Delhi it professionals
This document discusses heuristic evaluation, a discount usability testing technique developed by Jacob Nielsen. Heuristic evaluation involves having a small group of 3-5 evaluators independently examine a user interface and identify any usability issues based on 10 design heuristics. Evaluators then aggregate their findings and assign severity ratings to identify the most critical problems. Heuristic evaluation is less costly than other usability testing methods but can still find several usability issues. The document outlines the phases of heuristic evaluation and describes the 10 design heuristics that evaluators use to examine a user interface, such as providing feedback on system status, using familiar language and metaphors, and enabling user control and freedom of use.
Delhi it professionals
- 1. Delhi IT Professionals Heuristic Evaluation : Discount Usability Testing Sushil Bharwani @jsushil
- 2. How Many SoftwareEngineers Does It takes to Change a Light bulb?
- 3. How Many UsabilityEngineers Does it takes to change a Light bulb?
- 4. • Usability Engineeringis an Important aspect of any product Development. • People rarely use the recommended usability engineering methods. • One important reason usability engineering is not used in practice is the cost of using the techniques or rather perceived cost.
- 5. “le mieux estl'ennemi du bien" (The best is the enemy of the good) [Voltaire 1764] Heuristic Evaluation is a Discount Usability Technique, It is not costly like using Regular Usability Principles, but helps in finding several usability problems in your Product.
- 6. Heuristic Evaluation Technique •Developed by Jacob Nielsen. • It’s a Discount Usability Technique. • It’s a Critique based approach. • Helps find usability problems in a design. • Small set (3-5) of evaluators examine UI. • Independently check for compliance with usability principles (“heuristics”). • Different evaluators will find different problems evaluators only communicate afterwards. • Findings are then aggregated. • Can perform on working UI or sketches.
- 7. Phases of HeuristicEvaluation 1. Pre-evaluation training: give evaluators needed domain knowledge and information on the scenario. 2. Evaluation: individuals evaluate (against defined Heuristics) and then aggregate results. 3. Severity rating: determine how severe each problem is (priority). Can do first individually and then as a group. 4. Debriefing: review with design team.
- 8. Severity Ratings 0 -don’t agree that this is a usability problem 1 - cosmetic problem 2 - minor usability problem 3 - major usability problem; important to fix 4 - usability catastrophe; imperative to fix
- 9. Ten Design Heuristics • Show system status • Familiar metaphors & language • Control & freedom • Consistency • Error prevention • Recognition over recall • Flexibility & efficiency • Aesthetic & minimalist design • Recognize, diagnose, & recover from errors • Help
- 10. 1. Show SystemStatus Show Time • Feedback depends on response time <1s: just show outcome ~1s: feedback that activity is underway Hour Glass >>1s: Show fractional progress; time
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- 14. Show: Next steps •Amazon purchase reply
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- 16. 2.Familiar Metaphors & Language Familiar Metaphors • Real world Metaphors Like Trash, files, Folders upload My Documents
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- 20. 3. User Controland Freedom • Freedom to Undo and Redo
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- 22. 4. Consistency andStandards • Consistent Layout
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- 24. 5.Error Prevention • PreventData Loss
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- 28. 6.Recognition over Recall •Recognition with Previews
- 29. 7.Flexibility and Efficiency •Flexible Default with options
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- 31. 8.Aesthetic & Minimalist Design • Above the Fold
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- 33. 9. Recognize, Diagnose,& Recover from Errors • Make Problem Clear.
- 34. Errors: Provide asolution
- 35. Errors: propose analternative
- 36. 10. Help • HelpGuide the Way
- 37. Help Show theSteps
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- 39. Help provide moreInformation