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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Self pointer in limited record
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Date: Tue, 4 Sep 2007 12:14:18 +0200
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Date: 2007-09-04T12:13:51+02:00
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On Tue, 04 Sep 2007 11:36:37 +0200, Jean-Pierre Rosen wrote:

> Dmitry A. Kazakov a �crit :

>> Abstract data type is an abstraction of concrete data types.
>> 
>> Abstract state machine is an abstraction of concrete state machines.
> 
> Maybe that's where our points of view differ.
> 
> To me, an abstract data type is a data type that offers only an abstract 
> interface, an interface which is an abstraction of a real-world domain, 
> without (visible) references to the implementation. The concrete data 
> type is the set of bits used to implement the abstract data type. (and 
> similarly for the state machine).
> 
> In short: I view the abstract data type as an abstraction of a real 
> world object, not of a computer data type.

I see, in your view abstraction = [abstract] model

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de