Implementing stepwise refinement

As we go through the coding and testing process:

• Will need to write more detailed specifications for each method in Figure 2.

Subdividing methods

May also need to subdivide some methods into smaller and more specific methods:

• To stay true to the concept that:
  • Each method should do only one job and should do it well. 

If so, we will specify, design, code, and test those methods as well.