Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ames!apple!kentb From: kentb@Apple.COM (Kent Beck) Newsgroups: comp.object Subject: Re: What is OOP / OOD Message-ID: <35217@apple.Apple.COM> Date: 3 Oct 89 16:56:55 GMT References: <1989Oct2.161552.14306@polyslo.CalPoly.EDU> Organization: Apple Computer Inc, Cupertino, CA Lines: 7 An object has identity (can be differentiated from all other objects), responds to stimuli idiosyncratically, and contains hidden internal state. OOD is the process of dividing responsibility among collaborating objects. See my paper with Ward Cunningham in OOPSLA '89 (which I am right now missing because of impending fatherhood- Hi everybody, I miss you). Kent