Her customer cared about the objects inside the prototype and understood why they mattered. Here is what we had done to make that happen. I met the team of sixteen people, customers and developers, on the first day of a four-day design workshop early in the project. They had already gone through introductory training in Smalltalk that included an introduction to CRC-Cards. They weren t sure.
Team finds easy objects to be hard business.
On Monday we wrote cards for lots of business data. This was easy. Most everyone was familiar with the current system and the several volumes of requirements that had been written for the next one. If a noun appeared in there anywhere we probably had it on a card. By the end of the day everyone was tired and a little worried.