Re: Does Codd's view of a relational database differ from that ofDate&Darwin?[M.Gittens]

From: Dan <>
Date: 20 Jun 2005 12:06:53 -0700
Message-ID: <>

VC wrote:
> "Jan Hidders" <> wrote in message
> news:Enjse.122609$
> [..]
> > Yes, you also seem to have added a little frame logic (e.g. see F-logic)
> > and concept lattices into the mix. Both are well-known and useful theories
> [...]

> Aha, that's what it is, 'concept lattices', huh ? The one where the world
> is modelled with 'objects', their 'attributes' and a binary relation between
> them ?
> I wonder why Alexandr Savinov was reluctand to describe his data model if
> that's what it is. A formal description takes just a couple of lines.

Seems strikingly similar to the concepts behind the Resource Description Framework (RDF) and the proposed foundations of the Semantic Web. That makes sense given the derivation from both Frame Logics and concept lattices. Of course, that model isn't based on binary relations, but rather on triples (arity of 3), with the addtional attribute for context.

  • Dan
Received on Mon Jun 20 2005 - 21:06:53 CEST

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