Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!mcsun!ukc!mucs!logitek!hrc63!mrcu!nic
From: nic@mrcu (Nick Chapman)
Newsgroups: comp.object
Subject: Re: Object Oriented Database Design
Summary: Nothing to do with OO Analysis !
Message-ID: <919@hic.mrcu>
Date: 3 May 91 08:15:20 GMT
References: <1991Apr22.073328.7858@ira.uka.de> <24520@well.sf.ca.us>
Reply-To: nic@uk.co.gec-mrc (Nick Chapman)
Organization: GEC-Marconi Research Centre, Great Baddow, UK
Lines: 33

>The first of the 3 sets of models in OOA is the Information Model and 
>almost everything you might want to know about IM is covered in their 
>book "Object-Oriented Systems Analysis: Modeling the world in Data"  
>Prentice-Hall  1988.


What has this book got to do with Object Oriented analysis ?
-- absolutely nothing.

In my opinion this book consists entirely, of a shallow description of
the information model, and a technique that is just Structured Analysis
with a new name.

Look at the useful advice it gives on how to find the objects
contained within a system, which surely is the fundermental problem :

   It is assumed that you know the approximate "center" of the
   problem domain, and you will start there to identify objects. If
   you can't identify the center, start anywhere and just keep working.
   (Section 9.2.1)    


>                     The sequel "Object Lifecycles:  Modeling the World 
>in States"  will be available later this summer. 

Can't wait !!

.Nick.
-- 
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Nick Chapman, GEC-Marconi Research Centre | INTERNET: nic@uk.co.gec-mrc
Great Baddow, Chelmsford, Essex. CM2 8HN  | Tel: +44 245 73331 x3245
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