On Dec 11, 2007, at 6:18 PM, Sergio Andreozzi wrote:
sure we can consider this. What is the advantage of this vs. the other options that you like?
It is simpler and less complex for one entity to reference another, than to create a 3rd entity that describes the relationship. Creating a 3rd entity that describes a relationship between two other entities makes the most sense when you can't alter the relating entities (because they're already defined or someone else owns them), or they are generally unrelated except in a special case of limited interest. If the intention is that Services should generally be associated to AdminDomains it's more straightforward to describe this as service attributes.
And also, can I ask you to investigate what is the most MSD4- friendly aggregation level option? What does happen in case of aggregation-level strategies named A/B/yours? (http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/ GLUE2XMLSchema)
MDS4-friendlyness wasn't a factor in the above suggestion. I believe MDS4 is neutral about how entities relate to each other. Regards, JP