2. What is user testing?
• A qualitative research method where user behaviour is observed.
• Aim is to understand what people do with minimal interference from the
method itself.
• Focus is on collecting data (evidence) directly (not indirectly via a survey or
analytics).
• Can be formative (informs design decision) or summative (evaluates the
finished product).
3. “Supposing is good, but finding
out is better.”
User testing benefits:
• Less risk
• Inform decision-making
• Drives innovation
• Recognise latent user issues
• Exposure to real users
4. Aren’t you supposed to be
an expert?
• Designers are not your users.
• Every business needs to understand the goals, motivations and behaviour
of its users.
• Is my guess correct?
5. User Testing works
• A 28% faster average completion time for tasks and an overall 37% reduction
in the number of usability problems (Tan et al, 2001)
• Reduced task time and increased user satisfaction (Bailey and Wolfson, (2005);
LeDoux, L.C., Connor, E. and Tullis, T.S. (2005))
6. Larry Tesler
“Usability testing should always be done
before a designer finalizes unproven or
controversial interface elements.”
Source: http://www.designingforinteraction.com/tesler.html
[Accessed 10 May 2015]