Cooper99 Please use the alphabetical Index , Contents List , and your browsers search feature to find what you need. This page was generated from Cooper99.mth . Problems Cognitive friction. They want to understand how things work more than use them - prefer a dismantled a clock that they understand to one that works. They are intellectual jocks - superior by making others feel stupid.
Programmers have False goals - technical with No user value.
Solution First catch your user. Not sets or averages but individuals. Not edge case. Not a buyer who won't use it. Design for one user only.