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From: Matteo Bordin <matteo.bordin@gmail.com>
Newsgroups: comp.lang.ada
Subject: 
 =?windows-1252?Q?Re=3A_Comparison_=3A_Ada_and_UML_=28comparison=85_indeed=29?=
Date: Wed, 10 Nov 2010 01:34:42 -0800 (PST)
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On Nov 9, 9:02=A0pm, Simon Wright <si...@pushface.org> wrote:
> Matteo Bordin <matteo.bor...@gmail.com> writes:
> > a UML class needs to be instantiated to have a run-time executable
> > semantics
>
> I don't understand this?

What I meant to say is that a UML class is not an instance. This was
related to the discussion about HOOD and the problem of mapping the
notion of HOOD object to a UML element. Mapping it to a class is
controversial because the two elements are really different: a UML
class needs to be instantiated, a HOOD object is already a "runnable"
element.

> There has to be some sort of profile (both in allowable UML constructs
> and what they mean in terms of program execution). "If you model like
> _this_ and generate code using _our generator_, the result will work
> like _that_".

Sure, but this way you may risk to model your application based on a
precise code generation strategy, possibly loosing portability and
platform-independence of models.