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Heuristic ux-evaluation

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The benefits of heuristic checklists for UX.

Publicado en: Tecnología
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Heuristic ux-evaluation

  1. 1. Heuristic UX Evaluation www.flickr.com/photos/pedrovezini/4933885107
  2. 2. @steffenk71 Steffen Kastner UX Researcher gutefrage.net
  3. 3. Today’s Takeaway 3 Heuristic evaluation is NOT a replacement for talking to your users!
  4. 4. So what is it then? 4 A heuristic technique is any approach to problem solving, learning, or discovery that employs a practical methodology not guaranteed to be optimal or perfect, but sufficient for the immediate goals. Wikipedia
  5. 5. Some things never change … 5 • Strive for consistency • Cater to universal usability • Offer informative feedback • Design task flows to yield closure • Prevent errors • Permit easy reversal of actions • Make users feel they are in control • Minimize short-term memory load • Consistency and standards • Visibility of system status • Match between system and real world • User control and freedom • Error prevention • Recognition rather than recall • Flexibility and efficiency of use • Aesthetic and minimalist design • Help users recognize, diagnose and recover from errors. • Provide online documentation and help Shneiderman (1987) Nielsen and Molich (1990)
  6. 6. Some things never change … 6 • Strive for consistency • Cater to universal usability • Offer informative feedback • Design task flows to yield closure • Prevent errors • Permit easy reversal of actions • Make users feel they are in control • Minimize short-term memory load • Consistency and standards • Visibility of system status • Match between system and real world • User control and freedom • Error prevention • Recognition rather than recall • Flexibility and efficiency of use • Aesthetic and minimalist design • Help users recognize, diagnose and recover from errors. • Provide online documentation and help Shneiderman (1987) Nielsen and Molich (1990)
  7. 7. Some things never change … 7 ?
  8. 8. Read this! 8
  9. 9. Nielsen’s & Molich’s 10 Interaction Design Principles a.k.a. »10 Usability Heuristics for User Interface Design« 9 www.nngroup.com/articles/ten-usability-heuristics/
  10. 10. 1. Visibility of system status 10 
 The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.
  11. 11. 2. Match between system and the real world 11 
 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.
  12. 12. 3. User control and freedom 12 Users often choose system functions by mistake and will need a clearly marked "emergency exit" to leave the unwanted state without having to go through an extended dialogue. Support undo and redo.
  13. 13. 4. Consistency and standards 13 Users should not have to wonder whether different words, situations, or actions mean the same thing. Follow platform conventions.
  14. 14. 5. Error prevention 14 Even better than good error messages is a careful design which prevents a problem from occurring in the first place. Either eliminate error-prone conditions or check for them and present users with a confirmation option before they commit to the action.
  15. 15. 6. Recognition rather than recall 15 Minimize the user's memory load by making objects, actions, and options visible. The user should not have to remember information from one part of the dialogue to another. Instructions for use of the system should be visible or easily retrievable whenever appropriate.
  16. 16. 7. Flexibility and efficiency of use 16 Accelerators – unseen by the novice user – may often speed up the interaction for the expert user such that the system can cater to both inexperienced and experienced users. Allow users to tailor frequent actions.
  17. 17. 8. Aesthetic and minimalist design 17 Dialogues should not contain information which is irrelevant or rarely needed. Every extra unit of information in a dialogue competes with the relevant units of information and diminishes their relative visibility.
  18. 18. 9. Help users recognize, diagnose, and recover from errors 18 Error messages should be expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution.
  19. 19. 10. Help and documentation 19 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.
  20. 20. Visibility of system status
  21. 21. Visibility of system status fabric.io
  22. 22. Visibility of system status
  23. 23. Visibility of system status
  24. 24. Visibility of system status User control and freedom Match between system and real world
  25. 25. Use Heuristics/UX checklists to … 27 • … to identify the big flaws of your product, prototype, wireframe, … ! • … get an idea where to start your UX-fixing! • … avoid show-stoppers in usability tests! • … sharpen the »user’s eye« of your team! • … streamline your UX process!
  26. 26. DO NOT use Heuristics/UX checklists to … 28 … have an excuse for not doing usability testing!
  27. 27. 29
  28. 28. 30 Readability Check Tools www.leichtlesbar.ch read-able.com
  29. 29. http://bit.ly/1Bjp34F Deutsche UX-Checkliste:
  30. 30. Questions?
  31. 31. Thank you!

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