1. VHA Issue Paper: HL7 Methodology Discussion 11 January 2001 Government Projects SIG

2. 11 January 2001 2 Context Setting n Issue paper based on our participation and observations n Forwarded to M&M and limited distribution 2-3 weeks ago n Not just a Government Projects issue –We want to hear your comments

3. 11 January 2001 3 Objectives n Ensure that Veterans Health Administration can continue to reap maximum benefits from HL7 n Minimize risks that we see as HL7 3.x moves forward n Take stock and apply lessons learned from the Version 3 processes

4. 11 January 2001 4 Issues n Methodological –Focus and abstraction level of the RIM –Role and ability to apply RIM to non- messaging technologies n Notational –Style guide practices –Meta-model constraints

5. 11 January 2001 5 Observations n VHA is having a difficult time relating to the new RIM n Not all current HL7 practices are reflected in the MDF n Some style guide constraints result in counterintuitive representations n Modeling guidance has not kept current with industry –Profiles for UML –Role names –Constraint representation –Methods

6. 11 January 2001 6 Recommendations n Form n Form a [sub-]committee to –make –make current HL7 methodologies –address –address lessons learned –incorporate –incorporate industry best practices –address –address UML revisions –extend –extend the methodology to support CDA and Templates activities

7. 11 January 2001 7 Discussion...

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9. 9 Motion... n I move that the Government Project SIG charges M&M with standing up a committee to refresh the MDF with respect to: –issues of the paper –current UML practices –incorporate Templates and CDA work