Detailing a design may change the originally planned collaboration structure. The earlier, low precision, work needs to be done, and it needs to be done just accurately enough to permit the next work to be estimated and coordinated. Accuracy feeds the iterative process. The purpose of an iteration is to create the best deliverable possible at that time, i.e, making it as accurate as possible. Edibility is a good measure for accuracy, because people have an intuitive understanding of its meaning and consequences.
Scale is a matter of getting more of the system into view at one time.
Showing less of each item lets it take up less space. Select items for relevance . To get more of the domain model into view, you choose to omit the non-domain classes entirely. This is similar to a cartographer omitting bus lines and houses on a city map. Bundle multiple items together .