Test the assumption before you build on it. Most wasted development spend does not come from bad code. It comes from building something well that nobody needed, or building the right thing in a shape people cannot use. Both are visible before development starts, and...
Quite a lot, and it’s really important to know the strengths and weaknesses of qualitative research. It cannot predict what people will actually buy once a product is in market. What it can do is explain why customers make the choices they do, what changes those...
Yes, for the thing it is good at. Five participants will give you a strong view of the core usability problems in a flow. Jakob Nielsen’s work is the usual citation, and our own experience across hundreds of sessions a year matches it. The same three or four...
Smaller, almost always. We usually recommend starting with a small qualitative study and expanding only where the findings show that more digging will add value. Each phase stands on its own, so you get something usable at the end of the first round rather than...
This is the question we ask ourselves about every project, and it is the reason we work the way we do. We do not hand over a list of observations and leave you to work out what to do with them. Every finding is prioritised by severity, and recommendations are grouped...
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