From: "Nick Roberts" <Nick.Roberts@dial.pipex.com>
Subject: Re: Question (was Re: How to write TYPECASE in Ada 95?)
Date: 1999/02/24
Date: 1999-02-24T00:00:00+00:00 [thread overview]
Message-ID: <7b2544$4qd$1@plug.news.pipex.net> (raw)
In-Reply-To: 7avc0i$cnb$1@its.hooked.net
Object oriented programming is considered by many to be more (or entirely)
about a programming methodology (a 'mentality', if you like), rather than
just a particular set of programming tools, or the characteristics of a
particular programming language. It also has its own argot: you use
'objects' to model real-life entities; you organise those objects into the
hierarchies - or 'classes' - their real-world analogues exhibit; objects
interact by sending each other 'messages'; and so on.
I think Ada 95 was always designed to provide sufficient language 'tools' to
support an object-oriented methodology, without actually imposing that (or
any other) methodology (or terminology), as such. You can use tagged types
simply for 'programming-by-extension', without having to subscribe to the
whole object oriented 'mentality'. Or, if you wish, you can use them as a
part of a full-blooded object-oriented design approach. As you wish.
The thing that has always stood out to me about object oriented designs is
that a good design is almost always directly transferable from one
programming language to another. There's definitely something fundamental
about it. A good OO design can be a great design. Possibly the best thing
about it is that it persuades programmers to design at a higher level of
abstraction than they otherwise would. It's just a pity that all the
ballyhoo surrounding the subject at the moment could easily lead a lot of
people to think nothing of it.
-------------------------------------
Nick Roberts
-------------------------------------
next prev parent reply other threads:[~1999-02-24 0:00 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-02-05 0:00 How to write TYPECASE in Ada 95? Norman Ramsey
1999-02-05 0:00 ` Brian Rogoff
1999-02-05 0:00 ` David C. Hoos, Sr.
1999-02-05 0:00 ` Brian Rogoff
1999-02-06 0:00 ` Ed Falis
1999-02-06 0:00 ` Nick Roberts
1999-02-06 0:00 ` Nick Roberts
1999-02-17 0:00 ` Tom Moran
1999-02-18 0:00 ` Matthew Heaney
1999-02-18 0:00 ` robert_dewar
1999-02-19 0:00 ` Tom Moran
1999-02-19 0:00 ` Nick Roberts
1999-02-18 0:00 ` Tom Moran
1999-02-18 0:00 ` Tom Moran
1999-02-18 0:00 ` Matthew Heaney
1999-02-19 0:00 ` Tom Moran
1999-02-19 0:00 ` Tom Moran
1999-02-23 0:00 ` Samuel Mize
1999-02-23 0:00 ` Question (was Re: How to write TYPECASE in Ada 95?) Mike Silva
1999-02-24 0:00 ` (long) programming by extension (was: " Samuel Mize
1999-02-24 0:00 ` (long) programming by extension Samuel Mize
1999-02-25 0:00 ` (shorter and new) " Samuel Mize
1999-02-25 0:00 ` Mike Silva
1999-02-26 0:00 ` Samuel Mize
1999-02-24 0:00 ` Nick Roberts [this message]
1999-02-24 0:00 ` Question (was Re: How to write TYPECASE in Ada 95?) Samuel T. Harris
1999-02-24 0:00 ` Matthew Heaney
1999-02-24 0:00 ` Tucker Taft
1999-02-06 0:00 ` How to write TYPECASE in Ada 95? Matthew Heaney
1999-02-06 0:00 ` David C. Hoos, Sr.
1999-02-06 0:00 ` Matthew Heaney
1999-02-06 0:00 ` Matthew Heaney
1999-02-06 0:00 ` Matthew Heaney
1999-02-09 0:00 ` David C. Hoos, Sr.
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox