Design recipe for Scheme programs, version 2

Analysis and design (i.e. "decide what you want to do")

1. Understand the assignment informally
2. Write a function contract, specifying what kind of information goes in and what kind comes out
3. Analyze the data types going in and out
4. Write examples of how your function will be used, with correct answers

Implementation ("do it")

5. Write the function's Skeleton
6. Write an Inventory of available expressions; note that as the data types get more complex, so will the inventory.
7. Fill in the Function Body

Correctness checking ("check that you did it right")

8. Proofreading
9. Syntax checking
10. Testing and debugging

For the next elaboration of this, see version 3.