Usability: Test Types & Ethics

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Krista Kennedy

Tecnologia Design

Usability Testing Types

Wednesday, February 8, 12

Remember our
core terms:

Wednesday, February 8, 12

• Efﬁciency
• Learnability

Wednesday, February 8, 12

• Efﬁciency
• Learnability
• Satisfaction

Wednesday, February 8, 12

• Efﬁciency
• Learnability
• Satisfaction
• Effectiveness (R&C) / Errors (N)

Wednesday, February 8, 12

• Efﬁciency
• Learnability
• Satisfaction
• Effectiveness (R&C) / Errors (N)
• Memorability (N)

Wednesday, February 8, 12

• Efﬁciency
• Learnability
• Satisfaction
• Effectiveness (R&C) / Errors (N)
• Memorability (N)
• Accessibility (R&C)

Wednesday, February 8, 12

accessibility

Wednesday, February 8, 12

“making products usable
by people who have
disabilities.”
(R&C 5)

Wednesday, February 8, 12

the absence of frustration.

Wednesday, February 8, 12

Let’s talk testing.

Wednesday, February 8, 12

Bailey’s Human
Performance Model

Wednesday, February 8, 12

• the human
• the context
• the activity

Wednesday, February 8, 12

user-centered design

Wednesday, February 8, 12

“UCD is the techniques, processes, methods, and
procedures for designing usable products and systems...

It is the philosophy that places the user at the center of
the process.”

Wednesday, February 8, 12

How do we ﬁgure
this out?

Wednesday, February 8, 12

In a perfect world, you
start from the
beginning.

Wednesday, February 8, 12

We are not working in
perfect worlds.

Wednesday, February 8, 12

$74,000 - $105,000

Wednesday, February 8, 12

Instead, we’re going
to DIY.

Wednesday, February 8, 12

Band on every street corner.
A ‘zine in every bar.

Wednesday, February 8, 12

A usability specialist in every workplace.

Wednesday, February 8, 12

quick & dirty
experiments.

Wednesday, February 8, 12

human subjects

Wednesday, February 8, 12

our job is to

Wednesday, February 8, 12

develop:

- research questions

- test objectives

Wednesday, February 8, 12

Representative sample
of users

Wednesday, February 8, 12

Representation of
actual work
environments.

Wednesday, February 8, 12

Observation of
end users

Wednesday, February 8, 12

Collection of
performance and
preference measures.

Wednesday, February 8, 12

Recommendation of
improvements.

Wednesday, February 8, 12

iterative design

Wednesday, February 8, 12

Exploratory/Formative

Wednesday, February 8, 12

Not how well. (Yet.)

Why.

Wednesday, February 8, 12

Assessment /
Summative

Wednesday, February 8, 12

now we’re into
how well. Sort of.

Wednesday, February 8, 12

Validation / Veriﬁcation

Wednesday, February 8, 12

Testing Environments

Wednesday, February 8, 12

Lab
Onsite
Mobile
Remote

Wednesday, February 8, 12

observer location

Wednesday, February 8, 12

recording movement?
recording sound?
recording expressions?

Wednesday, February 8, 12

honest
fair
responsible

Wednesday, February 8, 12

informed
consent

Wednesday, February 8, 12

conﬁdentiality

Wednesday, February 8, 12

manipulation of data

Wednesday, February 8, 12

validity / reliability

Wednesday, February 8, 12

- techniques / methods
- researcher’s stance
- assumptions

Wednesday, February 8, 12

relationship with
audience

Wednesday, February 8, 12

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Usability: Test Types & Ethics

1. Usability Testing Types Wednesday, February 8, 12

2. Remember our core terms: Wednesday, February 8, 12

3. Wednesday, February 8, 12

4. • Efﬁciency Wednesday, February 8, 12

5. • Efﬁciency • Learnability Wednesday, February 8, 12

6. • Efﬁciency • Learnability • Satisfaction Wednesday, February 8, 12

7. • Efﬁciency • Learnability • Satisfaction • Effectiveness (R&C) / Errors (N) Wednesday, February 8, 12

8. • Efﬁciency • Learnability • Satisfaction • Effectiveness (R&C) / Errors (N) • Memorability (N) Wednesday, February 8, 12

9. • Efﬁciency • Learnability • Satisfaction • Effectiveness (R&C) / Errors (N) • Memorability (N) • Accessibility (R&C) Wednesday, February 8, 12

10. accessibility Wednesday, February 8, 12

11. “making products usable by people who have disabilities.” (R&C 5) Wednesday, February 8, 12

12. Wednesday, February 8, 12

13. Wednesday, February 8, 12

14. Wednesday, February 8, 12

15. Wednesday, February 8, 12

16. Wednesday, February 8, 12

17. Usability is Wednesday, February 8, 12

18. the absence of frustration. Wednesday, February 8, 12

19. Let’s talk testing. Wednesday, February 8, 12

20. Bailey’s Human Performance Model Wednesday, February 8, 12

21. • the human • the context • the activity Wednesday, February 8, 12

22. user-centered design Wednesday, February 8, 12

23. “UCD is the techniques, processes, methods, and procedures for designing usable products and systems... It is the philosophy that places the user at the center of the process.” Wednesday, February 8, 12

24. How do we ﬁgure this out? Wednesday, February 8, 12

25. In a perfect world, you start from the beginning. Wednesday, February 8, 12

26. We are not working in perfect worlds. Wednesday, February 8, 12

27. Wednesday, February 8, 12

28. Wednesday, February 8, 12

29. $74,000 - $105,000 Wednesday, February 8, 12

30. Wednesday, February 8, 12

31. Instead, we’re going to DIY. Wednesday, February 8, 12

32. Wednesday, February 8, 12

33. Band on every street corner. A ‘zine in every bar. Wednesday, February 8, 12

34. A usability specialist in every workplace. Wednesday, February 8, 12

35. quick & dirty experiments. Wednesday, February 8, 12

36. Wednesday, February 8, 12

37. experiential Wednesday, February 8, 12

38. human subjects Wednesday, February 8, 12

39. our job is to Wednesday, February 8, 12

40. develop: - research questions - test objectives Wednesday, February 8, 12

41. Representative sample of users Wednesday, February 8, 12

42. Representation of actual work environments. Wednesday, February 8, 12

43. Observation of end users Wednesday, February 8, 12

44. Interviewing Wednesday, February 8, 12

45. Collection of performance and preference measures. Wednesday, February 8, 12

46. Recommendation of improvements. Wednesday, February 8, 12

47. Study Types Wednesday, February 8, 12

48. iterative design Wednesday, February 8, 12

49. Exploratory/Formative Wednesday, February 8, 12

50. Wednesday, February 8, 12

51. Not how well. (Yet.) Why. Wednesday, February 8, 12

52. Exploratory Wednesday, February 8, 12

53. Assessment / Summative Wednesday, February 8, 12

54. now we’re into how well. Sort of. Wednesday, February 8, 12

55. Validation / Veriﬁcation Wednesday, February 8, 12

56. Comparisons Wednesday, February 8, 12

57. Testing Environments Wednesday, February 8, 12

58. Lab Onsite Mobile Remote Wednesday, February 8, 12

59. user comfort Wednesday, February 8, 12

60. observer location Wednesday, February 8, 12

61. recording movement? recording sound? recording expressions? Wednesday, February 8, 12

62. Wednesday, February 8, 12

63. or, Wednesday, February 8, 12

64. Wednesday, February 8, 12

65. honest fair responsible Wednesday, February 8, 12

66. informed consent Wednesday, February 8, 12

67. conﬁdentiality Wednesday, February 8, 12

68. manipulation of data Wednesday, February 8, 12

69. validity / reliability Wednesday, February 8, 12

70. - techniques / methods - researcher’s stance - assumptions Wednesday, February 8, 12

71. human subjects Wednesday, February 8, 12

72. human subjects Wednesday, February 8, 12

73. relationship with audience Wednesday, February 8, 12

Usability: Test Types & Ethics

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