Presentations in Interface and Interaction Design course, IMKE master programme, Tallinn University.

1. User interface prototyping techniques
Hans Põldoja

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3. Process
• Following the design patterns / interface guidelines
• Creating separate prototype(s) for each
functionality (user story)
• Making changes in the user story, if needed
• Putting the pieces together
• Taking photos of the process (paper prototyping)
• Finding missing stories / prototypes

4. Design patterns,
guidelines & grids

5. http://developer.yahoo.com/ypatterns/

6. http://developer.apple.com/library/ios/

7. http://developer.android.com/guide/practices/ui_guidelines/

8. http://lessframework.com

9. http://960.gs

10. From user stories to
paper prototypes

11. Initial user story

13. Improved user story

16. Redesigning existing
interfaces

19. Testing paper
prototypes

20. Preparation
• Creating tasks based on the scenarios
• Creating related interview questions

21. Designing the right tasks
“Years ago, we helped with a study of Ikea.com, looking at how people found
products on the site.When we got there, they'd already started the testing process
and were using tasks like "Find a bookcase." Interestingly, every participant did
exactly the same thing: they went to the search box and typed "bookcase".
Upon our suggestion, the team made a subtle change to the instructions they were
giving their participants: "You have 200+ books in your fiction collection, currently
in boxes strewn around your living room. Find a way to organize them."
We instantly saw a change in how the participants behaved with the design. Most
clicked through the various categories, looking for some sort of storage solution.
Few used Search, typing in phrases like "Shelves" and "Storage Systems". And,
nobody searched on "bookcase".”
(Jared M. Spool)
(Spool, 2005)

22. What to focus on?
• Terminology. Do they understand the terms in the
UI?
• Navigation. Does the flow match what users
expect?
• Content. Does it provide the right level of
information?
• Page layout. Is content organized as users expect?
• Functionality. What additional features are desired?
(Ginsburg, 2009)

23. Testing session
• Test person
• “Paper computer”
• Facilitator

24. Prototyping software

25. Balsamiq Mockups

26. OmniGraffle

27. OmniGraffle

28. http://developer.yahoo.com/ypatterns/about/stencils/

29. OmniGraffle

30. Pencil

31. Prototyping software
• Balsamiq Mockups: http://www.balsamiq.com/
products/mockups
• OmniGraffle: http://www.omnigroup.com/
products/omnigraffle/
• Pencil: http://pencil.evolus.vn

32. References
• Ginsburg, S. (2009). An agile approach to iPhone design: Paper prototyping +
user testing. http://www.slideshare.net/ginsburgdesign/an-agile-approach-to-
iphone-design-paper-prototyping-user-testing
• Spool, J.M. (2005). Seven Common Usability Testing Mistakes. http://
www.uie.com/articles/usability_testing_mistakes/

33. Thank You!
• hans.poldoja@tlu.ee
• http://imkedesign.wordpress.com