Talk:Compositional Expressions in HL7 Value Sets

JTC: 5/11/2011 - Can we get a link to the presentation that Ed made? Also, when talking about assigning an ID to the post-coordinated expression, it is important that the source/maintainer of the expression be traceable, thus in SNOMED CT, for RF1 the ID should contain the namespace of the developer fo the expression, while in RF2 the ModuleID would be the ID of the "owner. Lastly, would there be a text decription of the expression or would the expression ID solely point to the fully expressed set of IDs needed to represent the concept? If the former, then this is nothing more than pre-coordination.