Slides from my Prototyping 101 talk at TajRiba 2013 - The first sub-Saharan African month long conference and workshop focused on UX, design, and bringing world class User Centered Design experts to Nairobi to give a series of practical, hands-on training sessions that help Africans develop products that solve African problems.
22. Negative capability
is “when a person
is capable of being
in uncertainties,
mysteries, doubts,
without any irritable
reaching after fact
and reason”
30. try 5
0
0%
25%
50%
75%
100%
3 5
80%
6 9 12 15
Number of Test Users
UsabilityProblemsFound
Why You Only Need to Test with 5 Users
http://www.nngroup.com/articles/why-you-only-need-to-test-with-5-users/