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Xref: utzoo comp.software-eng:1156 comp.lang.ada:2063
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ukma!gatech!hubcap!billwolf
From: billwolf@hubcap.clemson.edu (William Thomas Wolfe,2847,)
Newsgroups: comp.software-eng,comp.lang.ada
Subject: Re: Good Design Strategies <Was comments on comments>
Message-ID: <4574@hubcap.UUCP>
Date: 27 Feb 89 15:46:09 GMT
References: <4343@enea.se>
Sender: news@hubcap.UUCP
Reply-To: wtwolfe@hubcap.clemson.edu
List-Id: <comp.lang.ada>

>From article <4343@enea.se>, by sommar@enea.se (Erland Sommarskog):
> I don't want to start an Ada vs. Eiffel debate, but the view that
> Eiffel is a flaky language is something Bill Wolfe have to stand for 
> himself.
> 
> What I like to stress is: Ada is *not* an object-oriented language.
> I used to think that, but there are just to much missing. Particulary
> inheritance and dynamic typing. And although this is a trivial fact to
> realise, it still seems necessary that from time to time make a reminder
> about this. Due to Gary Booch and others it is easy for the casual
> reader to get the impression that Ada <=> object-oriented programming.

    I quote from ACM SIGADA Ada Letters, March/April 1989, Volume IX,
    Number 2, Page 10:

      Software Productivity Solutions, Inc., has announced a new product,
      Classic-Ada (tm), which allows Ada software developers to use
      inheritance and dynamic binding in object-oriented Ada designs.
      The product runs on VAX/VMS and Sun/Unix systems.  For more
      information, contact:

         (407) 984-3370       Ms. Lois Valley
                              Vice President, Marketing
                              Software Productivity Solutions, Inc.
                              P.O. Box 361697
                              Melbourne, FL  32936-1697


   I stand by my statement regarding Eiffel's flakiness.  Obviously 
   it's just my opinion, and others may differ, but I think it's a 
   very well-founded opinion.


   Bill Wolfe, wtwolfe@hubcap.clemson.edu