Re: Multiplicity, Change and MV

From: x <>
Date: Tue, 18 Apr 2006 16:08:58 +0300
Message-ID: <e22obo$t3e$>

"dawn" <> wrote in message
> x wrote:

> It just struck me that you are bi-lingual with English as a 2nd (or
> nth) language while I don't speak the RM as handily as MV, for example.
> A minor challenge for both of us.

I don't know "English" - the query language of some Pick system.

> > I wonder if those who use them are confused by them or there are some
> > precise definitions of them.

> There are some terms with very precise definitions such as file,
> attribute/field, value (on my site in the MultiValue triology,
> particularly the Data "flashcards"), but since the model is not aligned
> precisely with any single, simple, mathematical model, there is a lot
> that is not nearly as precise as a mathematical definition would be.


It just occured to me that other possible problem with MV systems beside loops might be the [im]possibility to represent relations over the same domain like r(A,A,A,A) where A is an element/entity/whatever like Courses, Lecturers etc.
Could you provide an example for this ? Received on Tue Apr 18 2006 - 15:08:58 CEST

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