Value Set Definition Standard Project

A New Normative Standard for Value Set Definitions

Overview

[From the PSS] Describe the elements that make up a “Value Set Definition”, and ballot this as a normative HL7 specification, including a demonstration of how this is met in FHIR profiles and HL7 Model Interchange Format (MIF).

The definition of value sets is a required activity in completing the specification of most health information technology artefacts. To date, the approach for doing so has not been consistent within HL7 constructs and elsewhere. Many of the required elements and approaches are embedded in existing HL7 artefacts but not consistently. Currently, an explicit list of all the fields in an HL7 value set definition are surfaced only in the informative balloted MIF, with a general description of them in the normative Core Principles specification. A more accessible and standardized list of these fields is required to facilitate interoperability and sharing of value set definitions across HL7 artefacts and the Health IT community at large.

Success criteria: Publishing of the normative standard, and a demonstration of value set definitions that conform to this published normative specification.

Project Processes

Conference Call Schedule and Minutes

Weekly meeting to occur Wednesdays 3-4pm ET

Remember that we are in Daylight Savings Time transitions - US ET is now -5 UTC

Phone: +1 770-657-9270, Participant Code: 598745
Webmeeting Info:
Topic: HL7 VSD weekly meeting
Date & Time: Wednesday at 13:00 UTC-07
Duration: 1 hour
To participate, click on the link: https://go.mikogo.com/?sp=HL7vsd&sid=559756147
If the above link does not work, you can follow these steps instead to join a session:
1. Go to http://go.mikogo.com
2. Enter the Session ID: 559-756-147
3. Enter your name
4. Click "Join Session"
5. Enter the Session Password: HL7vsd

Second Weekly meeting to occur on Fridays 10am EST

Note different screen sharing utility for the first Friday call on November 22, 2013 10AM EST UTC-5
Duration: 1 hour
Regular HL7 Vocab Phone: +1 770-657-9270, Participant Code: 598745
To participate, click on the link:  https://join.me/474-238-263 
On PC or Mac, use any browser with Flash. Nothing to download. 
On a phone or tablet, launch the join.me app and enter meeting code: 474-238-263 
Or browse to http://join.me and enter the code 464-238-263 into the box under "join meeting", and click on the arrow.  There is no password for this meeting.

===Upcoming Meeting Agenda=== (12/6/13)

1. 10 min: Logistics
   1. Confirm folks are working on documenting approaches to VSD from other artifacts
   2. Additions to agenda?
2. 45 min: Content work
   1. Review of Logical Elements/Functions to define Content Logical Definition
      1. LM to do a review of functions in MIF - look for initial document soon
   2. Any remaining time: Continued review current value set metadata document [1]
      1. Start at the top, work our way down
   3. Versioning (essentially complete as of 12/4/13)
      1. Review last discussion (12/04/13 minutes)
      2. Four Identifiers for a value set, one that identifies the VS, 3 that identify changes
         1. VS ID
         2. Logical Definition ID
            1. Change in the Content Logical Definition
            2. Change in VS Stability
         3. Expansion Set ID
            1. New ID when the generated list of members differs from the last generated list
         4. Comprehensive VS ID (need better name?)
            1. Changed when any element changes in any way.
   4. Continue to clarify questions noted in Minutes on LM additions

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Minutes documents:

20131016_VSD_Minutes
20131022_VSD_Minutes
20131030_VSD_Minutes
20131106_VSD_Minutes
20131113_VSD_Minutes
20131120_VSD_Minutes
20131122_VSD_Minutes
20131127_VSD_Minutes
20131129_VSD_Minutes
20131204_VSD_Minutes

Key Target Dates

December 20, 2013 - must have final document to HL7 HQ

Project Documents

The project working documents are being maintained using Google Docs. These can be found at: Links to project documents