
194 9 Chapter I0: Planning Your Project
In particular, Chapter 13, Prototyping and Testing, provides addi-
tional information on some of these techniques. As a very broad rule
of thumb, consider proof-of-concept demonstrations as described in
this chapter to be among the exploratory tools you use to start a
project and to get its initial approval and funding. Prototyping is
what you do during the project as you experiment with different
ways of doing what has already been approved and funded. (Note
that you can use Cocoa and Interface Builder for prototyping any-
thing; you need not use them in your final project.)
Thus,