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definition of derivation?

From: Paul Groth <pgroth@gmail.com>
Date: Mon, 20 Jun 2011 22:06:02 +0200
Message-ID: <4DFFA82A.5000000@gmail.com>
To: "public-prov-wg@w3.org" <public-prov-wg@w3.org>, James Cheney <jcheney@inf.ed.ac.uk>
Hi All,

What do people think of Luc's definition of derivation:

- http://www.w3.org/2011/prov 
/wiki/ConceptDerivation#Definition_by_Luc_.28in_terms_of_properties.29
Things represent stuff in the real-world.

Definition of Derivation. A derivation represents how stuffs are 
transformed or affect each other in the real world.

A thing B is derived from a thing A if:

A was used (and therefore created) before B was created
The values of some invariant properties of B are partially determined by 
the values of some invariant properties of A

James you seemed to suggest another way to define derivation or not 
define it all? Can you be more specific?


Thanks,
Paul
Received on Monday, 20 June 2011 20:06:34 GMT

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