Welcome To TheHL7 Clinical Decision Support

Meeting!

Co-Chair

Robert A. Jenders, MD, MS

15 January 2003

(Please sign in.)

HL7 Working Group MeetingSan Antonio

TSC and Arden Syntax SIG Summary

Robert A. Jenders, MD, MS

Department of Medicine

Enterprise Information Services

Cedars-Sinai Medical Center / UCLA

January, 2003

RIM

• Publication schedule

– Ballot closed 6 Jan

– Final content deadline 10 Feb

– Next ballot open 10 March

– Ballot resolution in Cleveland week of 27 April

• RIM harmonization: Recent changes mostly definitional

– Over past year, classes reduced by half, attributes by 2/3 (but stable most recently)

Process Improvement Committee

• Created by Board 12/2002

• Membership concerns identified by survey:– Inconsistent decision-making practices (notification,

quorums)– Ballot process (poor feedback)– Workload distribution (too few workers!)

• Projects: Newsletter, updated co-chair handbook, complaint tracking

HL7 – IHE Collaboration

• IHE: Integrating (imaging with) the Healthcare Enterprise

– Project of RSNA + HIMSS (international)

– Attracting other groups: ACC, pharmacy, laboratory

– Not an SDO: Coordinate use of current standards in order to facilitate systems integration

– www.rsna.org/IHE

TSC - Other

• Approved update of Conformance SIG Mission/Charter update (to include advising Board about relationships with other groups interested in conformance tools)

• Approved update of Community-based Health Services mission/charter update (to include editing of referral chapter on behalf of Patient Care TC)

TSC: Recent Ballot Results

• Requirements: 60% vote, membership: 90% of Y/N = Y; committee: 2/3 Y/N = Y

• Passed:

– RIM committee ballot (with 13 negative ballots that need to be reconciled)

• Failed:

– V2.5 membership ballot: Needed 48 affirm votes, got only 20 affirm + 33 neg

– V2 XML membership ballot

Arden SIG

• Arden v2.5: Transition to OO model– New syntax: explicit typing (OBJECT) and query

(READ AS)– Reviewed related issues: • Time of objects (vs its attributes)• Applying (aggregation) operators to objects

themselves (vs attributes): max, min, sort, etc• Assignment by reference vs value• Object creation outside of a database read

• Action items: Develop use cases, refine syntax

Arden SIG

• Arden as XML: Reviewed proposed XML Schema

– Explored further structuring of Citations slot

• Refinement of notifier model: Further structuring of Write statement

• Database references: Discussed model for using RIM classes, SQL and published vocabularies to create a standard Read statement