Summary of high-level structure models

For ease of reference, here are the three high level structural models
of a contract which may come up in discussion in today's teleconf:

Model 1 - Harrop/Meyer Preliminary Report
-----------------------------------------

US users:

	instrument( h*, extra?, p*, background?, operative, (signatures |
extras)* )


UK/ANZ users:

	instrument( h*, extra?, datearea, parties, background?, operative,
(signatures | extras)* )


<extras> has an attribute which says whether these are

	( schedules | attachments | annexures | appendices | exhibits)



Model 2 - McClure 'Minority' Report
-----------------------------------------

Something like:

	legal:instrument( h?, div*, legal:recitals, legal:body,
legal:signature, div*)



Model 3 - historical New Orleans abstract container
----------------------------------------------------

	instrument (h*, struct*)

	struct( nr?, h?, p*, (section* | struct* | instrument*) )
	
		- actual element name for "struct" to be agreed
		- struct has an @class to say its Parties, Recitals etc


cheers,

Jason