--On Tuesday, November 16, 2004 12:58 PM +0100 Henry Story <[EMAIL PROTECTED]> 
wrote:
>
> Ok, so perhaps you would really like the model in which a Feed is a
> subclass of Entry.

That is the normal approach for compound documents. But I still 
don't see a convincing reason. And I do favor short specs.

1. People have been working on compound documents without much success
for at least fifteen years. To me, that indicates that they are either
very hard or not very useful.

2. I have not seen a use case where a feed would be treated as an entry.
If it is common, not just possible, for a feed to be an entry, then we
need this. Otherwise, we don't. Show me the real world use cases.

3. Identity is not sufficient for something to be the same class. It is
common for the same chemical to have multiple uses, each with different
trademarks, packaging, production, and sales figures. From a business
perspective, those identical chemicals must be treated as separate
things, e.g. a dessert topping and a floor wax.

wunder
--
Walter Underwood
Principal Architect, Verity

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