2. product usability & testing
- 1. Product Usability & Testing Prashanth A Session 2
- 2. • Session Objectives – At the end of this session delegate would have understood Product usability & its background. The stages of user interface evolution. Usability testing methods How to do usability testing What are the steps involved in usability testing
- 3. Session Topics 1. Product Usability 2. Background 3. Usability engineering 4. Heuristic usability effort 5. Stages of user interface evolution 6. Testing methods 7. Usability Testing 8. How do you divide the tasks? 9. How many people do you test? 10. How do you measure usability? 11. What happens with the results?
- 4. I present some of the concepts of usability & an attempt to persuade you how important it is. "The person who designed this SHITTY thing should be forced to use it!"
- 12. HEURISTIC-USABILITY EFFORT HEURISTIC Here are some H E U R I S T I C S to improve the product usability.
- 13. AFFORDANCE
- 14. MAPPINGS
- 15. CONTROL SENSE
- 16. CONSISTENCY Creates a framework that users understand, contributing to overall usability
- 17. MENTAL MODEL
- 18. E R R O R S
- 19. MINIMALISM Department of S P A C E
- 21. VISIBILITY (Perceived Affordance) It should be obvious what a control is used for.
- 22. TRANSPARENCY
- 25. STAGES OF USER INTERFACE EVOLUTION
- 26. TESTING METHODS
- 27. It's not the user, stupid!!!
- 30. P e r f o r m a n c e A c c u r a c y R e c a l l S t i c k i n e s s E m o t i o n a l r e s p o n s e
- 31. What (min) equipment do you need to formally test a website? • • – – – • • – –
- 32. How do you divide the task/s? • • •
- 33. Why videotape the session? • • • – – • •
- 34. Layout of the Room
- 35. PC is connected to notebook. Notebook displays whatever happens on the participant’s PC
- 36. Video camera set to record notebook screen & participant at PC (Ideal setup would have 2 cameras)
- 37. TV shows the video camera recording tester & test participant review this at the end of the session.
- 38. How many people do you test? – • • – • Jakob Nielsen
- 39. How do you measure usability? The product is usable if participants performed most of the tasks Benchmarking (Group 1): Quantitative Qualitative – –
- 40. What happens with the results? • •
- 41. What do you think about the rising “popularity” of usability testing? • • • • • •
- 42. Summary • Definitions of Product usability & testing have been introduced. • Background & selected topics from the usability engineering have been discussed. • Usability testing & few testing methods have been illustrated. • How to divide the task, allocate people & what to do with the results have been discussed.