Thinking Forth by Leo Brodie has a good worked-out example of representing rule systems in various ways including several approaches that use tables. I think it

Thinking Forth by Leo Brodie has a good worked-out example of representing rule systems in various ways including several approaches that use tables. I think it's much better motivated than in the linked paper. Starting on page 52: http://books.google.com/books?id=1AlWbXItiCYC&lpg=PA52&dq=Thinking%20Forth%20%22defining%20the%20rules%22&pg=PA52#v=onepage&q=Thinking%20Forth%20%22defining%20the%20rules%22&f=false http://books.google.com/books?id=1AlWbXItiCYC&lpg=PA52&#... The entire text can be found here as a free PDF: http://thinking-forth.sourceforge.net/ http://thinking-forth.sourceforge.net/