[xtm-wg] Modified diagram for Association Template

[Daniel Rivers-Moore <daniel.rivers-moore@rivcom.com>]

Attached is a modified graphic for the conceptual model of Association
Template.

It is structurally identical to the previous diagram. However, it renames
some of the elements to make it clearer that the association template is
itself and association, the role constraints are themselves a role in the
template association. An alternative approach would have been to add
subtype-supertype arrows from the left and middle boxes in the top row to
the corresponding boxes in the bottom row. However, this makes for a
cluttered diagram which is less easy to understand, and results in a larger
number of named object types in the conceptual model and therefore more to
do in the mapping between the model and the syntax.

 <<cd.AssociationTemplate.20010108.gif>> 

Daniel




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cd.AssociationTemplate.20010108.gif