HL7 and openEHR are cooperating (finally)
Publication date: Jan 21, 2011
During the HL7 Working group Meeting in Sydney a couple of initiatives were made to create a closer cooperation between HL7 and openEHR. A closer cooperation will be of benefit to us all - there are surely a lot of things where we can learn from each other.
An HL7 Work Group Meeting (WGM) recently took place in Sydney, Australia. Ocean informatics, a key player in the development of the openEHR standard is based in Australia. Whether that is part of the reason I don't know, but somehow there was a change in atmosphere and closer cooperation is now being envisioned when it comes to certain areas.
Grahame Grieve, who has been involved both in HL7 as well as in openEHR, presented a plan to create a whitepaper about the differences and similarities between the standards. In the past there have been a fair number of heated arguments that were probably caused by the different context in which the standards are to be used, or by the different goals that they have. If one doesn't understand the different aims any comparision between the two will lead to significant misunderstandings.
In the upcoming whitepaper Grahame will elaborate on these and other issues. HL7 defines interoperability standards for use between loosely coupled systems. This leads to fairly rich and self-describing information models in HL7, for one can't really make any assumptions about a receiving application. openEHR doesn't specify interoperability, it specifies the behaviour of an EHR system - in such an environment one is entirely aware of the system capabilities, it is the tightest form of tight coupling. The difference in goals leads to a different vision as how one should model healthcare data.
There are however considerable areas of overlap: both approaches are based on the use of a Reference Model (an high level information model) as well as a layer of constrained models.
In both standard envionments there is a need to capture the details of clinical models (an analysis model, using end-user terms, with references to literature). Clinical models (also known in ISO terms as a DCM, Detailed Clinical Model) contains a combination of medical knowledge, data specifications and terminology, making it suitable for various technical applications. During the week it was decided to create a feasability project to see whether one can express clinical models in openEhr archetypes, with transformation to HL7 v3 templates. openEHR has the tools that allow persons with a clinical background to define archetypes - hopefully those definitions can be reused in the HL7 context.
The HL7 RIMBAA Work Group> (the group that covers software development aspects of HL7 standards) hosted a joint meeting with openEHR software developers. We may have differences as to what is the 'best' reference model - for an implementer that doesn't actually matter that much. There are significant areas of overlap, e.g. in both standards one will have to deal with a 2-layer validation process (RIM, constrained models). Persistence, GUIs, querying techniques, model driven techniques etc. will be very similar. It was a very constructive meeting, we'll again have a joint meeting during the upcoming WGM in Orlando.
A closer cooperation will be of benefit to us all - there are surely a lot of things where we can learn from each other. The process of innovation includes looking at ones own product through different eyes now and then, if only to prevent group think in a closely knit standards development community.
Related posts: Adventures of a clinician in HL7! (Heather Leslie) and Healthcare standards: Convergence (Keith Boone).
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Index of columns:
- News from the FHIR DevDays in Amsterdam (Dec 15, 2016)
- Next XDS Release (Oct 27, 2016)
- Five years of FHIR (Aug 11, 2016)
- Interoperability projects in Ireland - FHIReland (Mar 14, 2016)
- 2016 FHIR Jedi Calendar (Jan 06, 2016)
- Top 10 HL7 videos watched in 2015 (Dec 24, 2015)
- Update from the trenches on CDA R2.1/R3 and HL7v2. (Oct 15, 2015)
- FHIR DevDays - UK GP System APIs (Sep 16, 2015)
- IHE XDS - testing and implementation tools (Aug 25, 2015)
- Most often implemented IHE Profiles (Jun 08, 2015)
- Why we sponsor the HL7 WGM (May 10, 2015)
- FHIR in Paris (Apr 21, 2015)
- Mapping HL7v2 messages to FHIR. (Apr 13, 2015)
- Analysis of CDA R2 testing tools - most requirements are neither tested nor respected. (Feb 13, 2015)
- HL7 and IHE in Sweden (Feb 08, 2015)
- 2015 FHIR Chiefs Calendar (Jan 07, 2015)
- The Merry FHIR Choir caroling the 12 Days of Christmas (Dec 09, 2014)
- Chicago FHIR Update (Oct 13, 2014)
- Internationalization of HL7 (Sep 25, 2014)
- New XDS Advanced training course on offer by IHE Services and IHE Academy (Jul 14, 2014)
- Recent and Future developments of the DICOM standard (Mar 06, 2014)
- Top 10 HL7 videos watched in 2013 (Jan 02, 2014)
- Report from the HL7 WGM in Cambridge (Oct 16, 2013)
- Documenting the history of HL7 (Sep 03, 2013)
- Histology Lab Device Automation using HL7 version 2 (Jul 23, 2013)
- HL7 FHIR Elevator Pitch (Jul 15, 2013)
- Interoperability Standards - the no-sales pitch (Jul 09, 2013)
- HL7 UK - new landscape, new opportunities (Jun 26, 2013)
- Validation and error correction at the IHE Connectathon (Apr 25, 2013)
- CDA Implementation Guides - (not) invented here (Apr 17, 2013)
- Usage of IHE Profiles (Feb 25, 2013)
- 10 year anniversary - Dutch Ringholm HL7 v2 training courses. (Feb 19, 2013)
- About IHE Academy and new IHE training courses (Jan 12, 2013)
- CDA implementation experiences in the UK (Dec 04, 2012)
- Musings on free HL7 IP (Oct 01, 2012)
- HL7 Connectathons (Sep 09, 2012)
- Renovate HL7 version 3 (Aug 03, 2012)
- Frequency of use of HL7 message types (Jul 24, 2012)
- Lighting the FHIR, HL7s new major interoperability standard (Jun 15, 2012)
- Reflections on the HL7 membership model - the affiliate life cycle (Dec 28, 2011)
- Thinking like an OWL reasoner (Sep 17, 2011)
- RFH (Resources for Health): HL7 version 3 taken to the next step (Aug 18, 2011)
- What's so great about the HL7 organization? (Aug 04, 2011)
- Kerndossier: een Nederlandse versie van CCD (Dutch, May 03, 2011)
- A HL7 RIMBAA update (Apr 21, 2011)
- Timezone Hotel (Mar 29, 2011)
- HL7 and openEHR are cooperating (finally) (Jan 21, 2011)
- Increasing demand for IHE training courses (Dec 18, 2010)
- Context issues with the IHE QED profile (Dec 15, 2010)
- The changing role of HL7 country organizations (Jul 16, 2010)
- Implementing HL7 version 3 - the book (May 06, 2010)
- Adding openness to a closed world (Feb 09, 2010)
- How to lower the hurdle for HL7 v3 implementers (Jan 21, 2010)
- HL7 v3 deployment statistics (Dec 17, 2009)
- There's Trouble in Paradigm (Sep 25, 2009)
- Internationalization of HL7 (Sep 24, 2009)
- HL7 UK signs deal with Ringholm to deliver HL7 v2/v3 training courses in London (Sep 17, 2009)
- The use of HL7 in South Africa (Aug 20, 2009)
- The Next Web Conference in Amsterdam (Apr 17, 2009)
- The HL7 UK AGM and RIMBAA (Apr 16, 2009)
- The HL7 Wiki reaches 2000 pages (Mar 02, 2009)
- The HL7 roadmap for CDA R3 and the CCD (Jan 17, 2009)
- HL7 Affiliates Meeting in Orlando (Jan 11, 2009)
- Swiss and Dutch HL7 News (Dec 31, 2008)
- Devices and Prizes (Nov 22, 2008)
- HL7 in Norway: a situation report (Sep 02, 2008)
- Russian whitepaper (Jul 09, 2008)
- The HL7 Interoperability Conference - IHIC 2008 (May 30, 2008)
- HL7 creates a RIM Based Application Architecture (RIMBAA) group (May 18, 2008)
- Notes from the HL7 WGM in Phoenix (May 08, 2008)
- Germany embraces CDA eReferral document specification (May 02, 2008)
- HL7 v3 RIM based applications: an unintended side effect (Jan 19, 2008)
- Collaborative Tools (Jun 21, 2007)
- HL7 ist Pflicht in der deutschen Telematikinfrastruktur (German, Mar 16, 2007)
- HL7 based Tree inventory system (Jan 30, 2007)
- The link between HL7 and Open Source Software (Jan 06, 2007)
- Workflow Bribery (Sep 15, 2006)
- Timezones in HL7 (Jan 23, 2004)
- Controlled vocabularies: "@*%!!!" ? (Sep 01, 2003)
- Trusting the other Party (Nov 01, 2002)
About Ringholm bv
Ringholm bv is a group of European experts in the field of messaging standards and systems integration in healthcare IT.
We provide the industry's most advanced training courses and consulting on healthcare information exchange standards.
See http://www.ringholm.com or call +31 33 7 630 636 for additional information.
Rene is the Tutor-in-chief of Ringholm.