Based on the TSC's input regarding identification of specific elements across XML documents, here is the approach that we have come up with for identifying elements within a virtual patient. I think it's consistent with all the recommendations.
Pre:Element.identifier.Subelement
Where
Pre=namespace prefix
Element=element name
identifier=locally unique identifer for the element specified within the document (optional - would only be used for elements that are repeated)
Subelement=Subelement of Element (optional - would only be used if it was necessary to specidy only a single subelement of a container element)
Example 1:
vpd:Medication.12345
Example 2:
vpd:PhysicalExam.23456.Finding