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From: ell@access2.digex.net (Ell)
Subject: Re: Interesting but sensitive topic to discuss (HELP: - OOP and CASE tools)
Date: 1996/11/13
Date: 1996-11-13T00:00:00+00:00	[thread overview]
Message-ID: <56cmum$9j5@news4.digex.net> (raw)
In-Reply-To: 32838D59.6462@concentric.net


Alan Lovejoy (alovejoy@concentric.net) wrote:

: If the same class hierarchy can be used to create many different
: programs
: (without defining any new classes or methods), then it should be obvious
: that the class inheritance hierarchy and program architecture and design
: are not at all the same things! 

Earlier I should have said that using the term "design" in a non-standard
way can lead to incorrect thinking about related issues.

I think you need to distinguish analysis from arcitecture from design. 
From what I gather in my experience in and readings on the development
phases, analysis examines requirements and traditionally in sw engineering
posits a logical solution.  Architecture takes that and creates an overall
physical design for implementation based in large part on language. Design
is mostly considered to be subsystem and category/object creation - though
architecture is the first part of it. 

I agree with you however that polymorphism/subtstitution in analysis
should be portrayed as a kind of non-specific (indefinite :-)
generalization rather than inheritance.  And that inheritance if
applicable should only first show up in architectural blueprints.

Elliott




  reply	other threads:[~1996-11-13  0:00 UTC|newest]

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-11-06  0:00 Interesting but sensitive topic to discuss (HELP: - OOP and CASE tools) Dong Oh Kim
1996-11-06  0:00 ` Paul_Gover
1996-11-06  0:00   ` Snowball
1996-11-13  0:00     ` Peter Pflaum
1996-11-13  0:00       ` David N. Smith
1996-11-06  0:00   ` Alan Lovejoy
1996-11-07  0:00     ` Piercarlo Grandi
1996-11-10  0:00       ` drs
1996-11-12  0:00         ` Piercarlo Grandi
1996-11-10  0:00       ` Vlastimil Adamovsky
1996-11-11  0:00         ` Piercarlo Grandi
1996-11-11  0:00           ` Anthony Menio
1996-11-18  0:00             ` Piercarlo Grandi
1996-11-20  0:00               ` Anthony Menio
1996-11-27  0:00                 ` Piercarlo Grandi
1996-11-12  0:00           ` Anthony Menio
1996-11-18  0:00             ` Piercarlo Grandi
1996-11-19  0:00               ` Anthony Menio
1996-11-27  0:00                 ` Piercarlo Grandi
1996-11-11  0:00       ` Daniel Drasin
1996-11-12  0:00         ` Anthony Menio
1996-11-08  0:00     ` Paul_Gover
1996-11-08  0:00       ` Ell
1996-11-08  0:00         ` Alan Lovejoy
1996-11-13  0:00           ` Ell [this message]
1996-11-08  0:00       ` Alan Lovejoy
     [not found]         ` <6KZQfjK-3RB@herold.franken.de>
1996-11-10  0:00           ` Interesting but sensitive topic to discuss (HELP: - OOP and CASE t Chris
1996-11-10  0:00             ` Vlastimil Adamovsky
1996-11-11  0:00         ` Interesting but sensitive topic to discuss (HELP: - OOP and CASE tools) Bill Gooch
1996-11-12  0:00           ` Alan Lovejoy
1996-11-13  0:00             ` Ell
1996-11-13  0:00             ` Nick Thurn
1996-11-14  0:00             ` Bill Gooch
1996-11-19  0:00               ` Tim Ottinger
1996-11-12  0:00           ` Jan Steinman
1996-11-12  0:00             ` Alan Lovejoy
1996-11-13  0:00               ` Nick Thurn
1996-11-13  0:00                 ` Alan Lovejoy
1996-11-14  0:00                   ` Nick Thurn
1996-11-10  0:00       ` vlad
1996-11-12  0:00     ` Robert C. Martin
1996-11-12  0:00       ` Alan Lovejoy
1996-11-14  0:00         ` David N. Smith
1996-11-14  0:00           ` Bill Gooch
1996-11-20  0:00         ` Robert C. Martin
1996-11-20  0:00           ` Michael Malak
1996-11-20  0:00             ` Robert Dewar
1996-11-20  0:00           ` Robert Dewar
1996-11-26  0:00           ` Tucker Taft
1996-12-03  0:00             ` Robert C. Martin
1996-12-08  0:00               ` Tucker Taft
1996-11-06  0:00   ` Jan Steinman
1996-11-07  0:00     ` Paul_Gover
1996-11-12  0:00     ` Robert C. Martin
1996-11-12  0:00       ` Alan Lovejoy
1996-11-12  0:00       ` Snowball
1996-11-15  0:00         ` Soren Skogstad Nielsen
1996-11-28  0:00         ` Piercarlo Grandi
1996-11-28  0:00         ` Piercarlo Grandi
1996-11-07  0:00 ` Interesting but sensitive topic to discuss (HELP: - OOP and CASE t Joachim Durchholz
1996-11-08  0:00   ` Richard A. O'Keefe
1996-11-09  0:00     ` Piercarlo Grandi
1996-11-13  0:00       ` Richard A. O'Keefe
1996-11-27  0:00         ` Piercarlo Grandi
1996-11-08  0:00 ` Nick Thurn
1996-11-08  0:00   ` Alan Lovejoy
1996-11-11  0:00     ` Nick Thurn
1996-11-11  0:00       ` Paul_Gover
1996-11-11  0:00         ` Anthony Menio
1996-11-11  0:00         ` Interesting but sensitive topic to discuss (HELP: - OOP and CASE tools) David N. Smith
1996-11-12  0:00           ` Anthony Menio
1996-11-08  0:00 ` Interesting but sensitive topic to discuss (HELP: - OOP and CASE t Joachim Durchholz
1996-11-12  0:00   ` Alaric B. Williams
1996-11-13  0:00   ` Richard A. O'Keefe
1996-11-08  0:00 ` Jon S Anthony
1996-11-08  0:00 ` Alan Lovejoy
1996-11-11  0:00 ` Interesting but sensitive topic to discuss (HELP: - OOP and CASE tools) Cesar A. Gonzalez Perez
1996-11-12  0:00 ` Interesting but sensitive topic to discuss (HELP: - OOP and CASE t Joachim Durchholz
1996-11-20  0:00   ` Piercarlo Grandi
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