The document provides a comprehensive overview of usability testing, including its definition, importance, planning processes, ethical considerations, and various testing methods. It outlines usability as a quality attribute defined by components such as learnability and satisfaction, and discusses how to select tasks and report results effectively. The content emphasizes best practices for conducting and reporting usability tests to enhance user experience.

1. USABILITY TESTING WORKSHOP
ESRA YALMAN
02.08.2016

2. • Why usability testing?
• Definition
• Planning
• Ethics
• Scenarios
• Test
• Reporting

3. WATERFALL WORKFLOW
REQUIREMENTS DESIGN IMPLEMENTATION

4. LEAN UX
Jevnaker, Ingjerd Straand. "Why Lean Facilitates Exceptional User Experiences - Making Waves Blog." Making Waves Blog. N.p., 9 Apr. 2014. Web. 01 Aug. 2016.

5. DEFINITION OF USABILITY
Usability is a quality attribute that assesses how easy user
interfaces are to use. The word "usability" also refers to
methods for improving ease-of-use during the design process.
Nielsen, Jacop. "Usability 101: Introduction to Usability." Usability 101: Introduction to Usability. N.p., 2 Jan. 2012. Web. 01 Aug. 2016.

6. DEFINITION OF USABILITY
Usability is defined by 5 quality components:
Learnability
Efficiency
Memorability
Errors
Satisfaction
Nielsen, Jacop. "Usability 101: Introduction to Usability." Usability 101: Introduction to Usability. N.p., 2 Jan. 2012. Web. 01 Aug. 2016.

7. USABILITY TESTING METHODS

8. USABILITY TESTING METHODS
Usability-Lab Studies
Ethnographic Field Studies
Focus Groups
Eye tracking, Heatmap
Remote Usability Studies
Card Sorting
Tree testing
A/B Testing (Split Test), Multivariate Test
Guerrilla usability testing
Paper prototype
First-click testing

9. Usability-Lab Studies

10. Interrogation Room

11. Ethnographic Field Studies

12. Focus Groups

13. Eye tracking, Heatmap

14. "Eye Tracking." Usability.gov. N.p., n.d. Web. 01 Aug. 2016.

15. Remote Usability Studies

16. A/B Testing (Split Test), Multivariate Test

17. Guerrilla usability testing

18. Paper prototype

19. First-click testing

20. Card Sorting

21. Tree Testing

23. FIRST CLICK TESTING
A participant who clicks down the right path on the first click
will complete their task successfully 87% of the time.
A participant who clicks down the wrong-path on the first click,
tends to only successfully complete their task 46% of the time.
Sauro, Jeff. "Getting the First Click Right." : MeasuringU. N.p., 19 Oct. 2011. Web. 01 Aug. 2016.

24. PLANNING A USABILITY TEST
"Planning a Usability Test." Usability.gov. N.p., n.d. Web. 01 Aug. 2016.

25. PLANNING A USABILITY TEST
You will need to include these elements in the usability test plan.
Scope
Purpose
Schedule & Location
Sessions
Equipment
Participants
Scenarios
Quantitative metrics
Roles
"Planning a Usability Test." Usability.gov. N.p., n.d. Web. 01 Aug. 2016.

26. THE ETHICS OF USABILITY TESTING
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

27. THE ETHICS OF USABILITY TESTING
• Don’t allow managers to watch usability tests if their staff are the
participants.
• Emphasize that you’re testing the website or application, not the test
participant.
• Make the first task incredibly simple.
• Observe strictly your own rules for handling video tapes.
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

28. SELECTING GOOD TEST TASKS
AND SCENARIOS
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

29. SELECTING GOOD TEST TASKS AND SCENARIOS
• Focus your test on core tasks, rather than on what’s new or fun or easy to test
• Let test participants define their own tasks.
• Write scenarios — not just tasks.
• Avoid tasks you think are humorous.
• Avoid hidden clues in task descriptions.
• Give the test participant a goal but avoid describing the steps.
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

30. RUNNING THE TEST
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

31. RUNNING THE TEST
• Sit with the test participants.
• Let test participants explore the site for one or two minutes initially.
• Ask the test participants to tell you if there are any graphics that they wouldn’t expect to
be links.
• Be diplomatic when test participants blame themselves.
• Wait a few minutes before you help.
• Help immediately if the participant is struggling with something that you already have
sufficient data about.
• Watch your tongue & your body language.
• Show your appreciation for any participant suggestions.
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

32. REPORTING TEST RESULTS
PROCESS
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

33. REPORTING TEST RESULTS PROCESS
• Ask your customer about reporting requirements
• Do a quality and usability check of your test report.
• Let the project team comment on the usability report
before you show it to others.
• Setup a database of reports that is easily accessible.
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

34. REPORTING TEST RESULTS
REPORT FORMAT
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

35. REPORTING TEST RESULTS REPORT FORMAT
• Make it short.
• Consider the following usability test report format
• Executive summary (1 page)
• Test participant profiles (1 page)
• Test results (5–7 pages)
• Appendix: Test script, including test scenarios
• Appendix: Screenshots annotated with key issues.
• Include a one-page executive summary
• Top 3 successes
• Top 3 problems
• Your conclusions and recommendations.
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

36. REPORTING TEST RESULTS REPORT FORMAT
• Classify all comments
• Problems
• Positive findings
• Suggestions from test participants
• Functional bugs
• Usage scenarios, where test participants describe their work.
• Include quantitative data
• The number of people who successfully completed each task.
• The number of people who experienced a particular problem.
• A breakdown of problems by experience level.
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

37. REPORTING TEST RESULTS REPORT FORMAT
• Develop a consistent report format
• Use an attractive and usable professional layout
• Stress that problem descriptions should be considered generic
problem descriptions
Molich, Rolf, and Jakob Nielsen. How to Conduct Usability Studies. USA: Nielsen Norman Group, n.d. PDF.

38. • www.uxbooth.com
• www.interaction-design.org
• www.uxservices.com
• blog.invisionapp.com
• www.thoughtworks.com/insights/experience-design
• www.nngroup.com/articles
• www.optimalworkshop.com/blog
• www.usertesting.com/blog
• www.uxpin.com/studio/blog
• www.usability.gov
• usabilitygeek.com
• www.userspots.com/category/blog
• www.thinkwithgoogle.com
• blog.designedbysherpa.com
• www.smashingmagazine.com
• www.webdesignernews.com
• www.uxmatters.com

39. ESRA YALMAN
@esrayetis