[plt-scheme] Processing lists

On Wed, Mar 11, 2009 at 4:08 PM, Todd O'Bryan <toddobryan at gmail.com> wrote:
> This is all very abstract, but I think it's helpful. Stop asking
> yourself, "What should I make the computer do?" and ask yourself, "How
> can I make an expression that represents what I want out of the pieces
> that I have?"

When you combine Design By Contract with Object Oriented you can
maintain a very nice model like you describe in the OO world.

When you working with PLT Scheme, you can do even better.