Re: Storing data and code in a Db with LISP-like interface
Date: Fri, 28 Apr 2006 09:23:34 -0700
"Neo" <neo55592_at_hotmail.com> wrote in message news:1145746437.660905.240120_at_g10g2000cwb.googlegroups.com...
> Ok, I see. Suppose we start with the following:
> subtype(doctor, human).
> subtype(engineer, human).
> named_instance(john, doctor).
> named_instance(mary, doctor).
> And now comes along an alien named bob, who has all the major
> characteristics of a doctor, but he is not a human. How do I handle
> this situation?
If this is true, then an alien can be a doctor and Bob can be an alien.
Therefore, we can no longer say, for certain, that 'just because john is a
doctor, therefore he is human,' because there are now alien doctors. The
ruleset change is small.
-- --- Nick Malik [Microsoft] MCSD, CFPS, Certified Scrummaster http://blogs.msdn.com/nickmalik Disclaimer: Opinions expressed in this forum are my own, and not representative of my employer. I do not answer questions on behalf of my employer. I'm just a programmer helping programmers. --Received on Fri Apr 28 2006 - 18:23:34 CEST