B.5.RC:4.1 - Fix the result and starting situation

Say what the next user needs to obtain and what they will do with it. Recover the conditions that distinguish a usable result: for example, a triangle on a supplied side, a display design that uses the supplied fittings, or data in the format required by a calculation.

Identify the starting objects and information already available. Distinguish an object supplied by the task from one the construction must produce. If a property alone answers the question, keep that smaller task. When an instance is needed, locate the operation that could obtain one.

Choose a small case that retains the troublesome dependency. A case that omits the unfamiliar operation cannot resolve how that operation works.