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Template Exchange ITS Preliminary Report Project # 885

Template Exchange ITS Preliminary Report Project # 885 . Andy Stechishin , Mark Shafarman , Kai Heitmann. Dr Kai U. Heitmann Heitmann Consulting and Services, Germany Past Board Member, HL7 International Chair , HL7 Germany.

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Template Exchange ITS Preliminary Report Project # 885

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  1. Template Exchange ITSPreliminary Report Project #885 Andy Stechishin , Mark Shafarman, Kai Heitmann Dr Kai U. Heitmann Heitmann Consulting and Services, GermanyPast Board Member, HL7 InternationalChair, HL7 Germany HL7 Working Group Meeting Baltimore, US, September 2012

  2. Agenda • History and drivingforce • Objectives • Requirementanalysis • DECOR • Chapter I: C-CDA and Trifolia • Coming upnext

  3. History and drivingforce • Multiple (national/international) groupscreatingHL7 CDA templatesindependently • Creationof a (canonical) format for template specifications • Exchange of templates between groups / tools • Template Repository • Artefact Registry

  4. Objectives • Knowledge sharing • Creating new templates or new versions of templates • Version management support • Support implementations using templates • Persistent storage • Consistent documentation of templates

  5. Step 1: Requirements analysis • Existing template tools • Model-Driven Health Tools (MDHT) • Trifolia Workbench • DECOR • Templates Registry Business Process Requirements • Model Interchange Format (MIF) • Severalotherapproaches, e.g. UK, NZ • Howfits FHIR intothegame?

  6. Project #885 • HL7 Templates ITS Pilot • sub-project of #272 (Templates DSTU) • Creating an ITS that supports an interchange format in a canonical form for HL7 CDA templates • DECOR methodology as a candidate for that format

  7. DECOR:Skills +developmentcycle

  8. DECOR’s “separation of concerns” • Terminologists • Software-Vendors • DECOR • => Data-Elements,Codes, OID‘s and Rules • Goal: consistent artefactdocumentation, generation ofsupporting materials for • Implementation • Validation • Testing, Qualification, Certification • Change Management • Architects • Certificators • HL7 Experts

  9. DECOR projects “worldwide” • ELGA (AT), national infrastructure – CDA • RIVM (NL), national screening programme on bowel cancer – CDA • QiN/KfH(DE), dialysis treatment data exchange – Care Provision • Nictiz (NL), multiple projects, e.g. • Perinatology – CDA and Care Provision • Laboratory results for pharmacists – Orders • Care Transfer Data – CDA • GP Acute Care – Care Provision • Youth Health Care – Care Provision, Immunization

  10. Chapter I: C-CDA and Trifolia • Trifolia templates “data”  DECOR template • 2 step conversion (by xslt’s) • Keith Boone: extract from sql database • Kai: transform to DECOR

  11. Overviewtemplates(in ART, theinterfacetoDECOR)

  12. Value Sets • Integrated terminologyservices

  13. Chapter I: C-CDA and Trifolia • Material • ~ 140 templates of various types • ~ 40 value sets • Results • Conversion succeeded • DECOR Value set and templates documentation • Generation of schematron

  14. Tabularview One of many ways to present DECOR templates Distraction from “fixed” items Focus on instance construction Validation as a “side-effect” Youractualworkstartshere!!!

  15. Chapter I: C-CDA and Trifolia • Further findings • Need of an extendedversionmanagement(whichisrequiredby DECOR) • Id and Name • Version date • Status code • Template lifecyclesupport • Templates Meta Data (seeTemplates Registry Business Process Requirements) • Artefact Registry (HingX)

  16. Chapter I: C-CDA and Trifolia • Further findings • DECOR woulduselessembeddedschematronassertions • e.g. forchoices, data type assertionscount(cda:assignedPerson | cda:representedOrganization)=1SHALL containexactlyone [1..1] assignedPersonexactlyone [1..1]representedOrganization • C-CDA: mean # ofschematron per template: 1.1 • ELGA: 133 templates, 17 inline asserts (mean 0.13) • General problem: expressionofco-constraints

  17. Chapter I: C-CDA and Trifolia • Further findings • Reuse • „This reference/@value SHALL beginwith a '#' and SHALL pointtoitscorresponding narrative (usingtheapproachdefinedin...“ • Repeated 14 timeswith different conf-x • Consistency

  18. Chapter I: C-CDA and Trifolia • C-CDA (from Trifolia) can be expressed in DÉCOR • “Manual” enhancements possible • Conceptual enhancements

  19. Coming upnext • Model-Driven Health Tools (MDHT) • Completely different approach • Model Interchange Format (MIF) • FHIR • Profiles ~ Templates • Not really in the focus of the group yet • XML based profiles, small group of volunteers to proceed on expressing FHIR profiles in DECOR • Results will be available on the HL7 wiki

  20. Thankyou!More questions? Templates Exchange ITS Dr Kai U. Heitmann Later? mailto:hl7@kheitmann.de

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