PROV-ISSUE-7: trying to reach consensus on derivation (deadline: Wednesday midnight GMT)

Dear all,

We are now 10 days away from the F2F meeting. We should try to reach 
consensus on a few definitions.
Last week [1], Paul suggested a definition for Derivation, and this was 
followed by a simplified
definition by Simon [2], now on the wiki [3]. I copy the text here for 
your convenience.

/PROPOSED: Derivation represents how stuff is transformed from or 
affected by other stuff. A thing B is derived from a thing A if the 
values of some invariant properties of B are at least partially 
determined by the values of some invariant properties of A.
/
We are trying to get consensus on a natural language definition for this 
concept. It may be revisited later by the team
dealing with the formalization.

Can you express your support, or alternative, for this definition? We 
would like to
reach consensus by Wednesday midnight GMT.

Best regards,
Luc

[1] http://lists.w3.org/Archives/Public/public-prov-wg/2011Jun/0338.html
[2] http://lists.w3.org/Archives/Public/public-prov-wg/2011Jun/0361.html
[3] 
http://www.w3.org/2011/prov/wiki/ConceptDerivation#Definition_by_Simon.2C_a_revision_of_Luc.27s_above

-- 
Professor Luc Moreau
Electronics and Computer Science   tel:   +44 23 8059 4487
University of Southampton          fax:   +44 23 8059 2865
Southampton SO17 1BJ               email: l.moreau@ecs.soton.ac.uk
United Kingdom                     http://www.ecs.soton.ac.uk/~lavm