Path: utzoo!mnetor!tmsoft!torsqnt!jarvis.csri.toronto.edu!rutgers!psuvax1!psuvm!uh2
From: UH2@PSUVM.BITNET (Lee Sailer)
Newsgroups: comp.databases
Subject: Re: Active/Expert Databases
Message-ID: <89262.132136UH2@PSUVM.BITNET>
Date: 19 Sep 89 17:21:35 GMT
References: <15608@brunix.UUCP>
Organization: Penn State University
Lines: 15

Expert systems store various forms of "knowledge" in a "knowledgebase"---
a database for things like MacDonald's sells fast food and Fast food places
are inexpensive.  There are a few operations on such data that are hard
to do with the usual database operators, so throw them in, too.

Take a look at a book on expert systems---I still like Hayes-Roth,
Waterman, Lenat (eds.) 1983 Building Expert Systems.  You'll see a lot
in common with relational database.  So much so that some people are
adding ES features such as forward and backward chaining, and uncertainty
to their database systems.  And vice versa.  (You figure it out.)

Also, Ullmans "new" database book is called something like
Data and Knowledge base systems.  He touches on these same topics.

                                                                  lee