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2 1 open_ehr templates in detail

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This presentation describes the concepts and use of templates in openEHR clinical modelling.

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2 1 open_ehr templates in detail

  1. 1. Hildegard McNicoll openEHR Templates in detail
  2. 2. openEHR Templates Formal specifications defining a particular aggregation of archetypes For a particular clinical context or purpose In practice creating datasets to underpin data entry definitions message definitions interface definitions
  3. 3. Templates vs Forms Template = Dataset Form = User Interface Vital Signs Encounter (Composition), Draft Template [Internet]. UK Clinical Models, UK Clinical Models Clinical Knowledge Manager [cited: 2016-03-09]. Available from: http:// clinicalmodels.org.uk/ckm/#showTemplate_1051.57.23 https://www.ehrscape.com/forms-demo.html
  4. 4. Archetype re-use
  5. 5. Archetype re-use Template underpinning application
  6. 6. Archetype re-use Issue Weight Blood Pressure HbA1c Assessment Template underpinning application Archetypes used in template
  7. 7. Archetype re-use Oximetry Issue Weight Blood Pressure HbA1c Assessment Template underpinning application Template underpinning application Archetypes used in template
  8. 8. Archetype re-use Oximetry Issue Weight Blood Pressure HbA1c Assessment Template underpinning application Template underpinning application Archetypes used in template
  9. 9. © Ocean Informatics 2008
  10. 10. © Ocean Informatics 2008
  11. 11. © Ocean Informatics 2008
  12. 12. © Ocean Informatics 2008
  13. 13. Template examples
  14. 14. Template design - core principle ‘Aggregate’ and ‘constrain’ component archetypes to make them fit for purpose
  15. 15. Template design - core principle ‘Aggregate’ and ‘constrain’ component archetypes to make them fit for purpose
  16. 16. Template design I Aggregate archetypes by filling slots COMPOSITION at top level SECTION, ENTRY and CLUSTER archetypes as needed Rename nodes to reflect local requirements Make some items mandatory Make multiple occurrence items, one occurrence only
  17. 17. Template design II Remove unwanted items by setting ‘zero occurrence' Reduce a choice of datatypes Set default values Fine-tune terminology bindings and term lists Fine-tune quantity ranges and units Add annotations to nodes to better document the template for developers or clinical reviewers
  18. 18. Operational templates Uploaded to CDR to validate data against template Used to generate concrete technical artefacts Template Data Object (TDO) C# / Java class libraries Template Data Schema (TDS) Per-template xml schema with simple tag- names Auto-form generators Template File Extract Zips up template and associated archetypes
  19. 19. Clinical Information models factory
  20. 20. Templates - the openEHR ‘workhorse’ “Archetypes get the glory but templates deliver the datasets” Key clinical endpoint Starting point for technical artefacts Class libraries, GUI skeletons, Message schema Most demand for archetyped content from requests for datasets Data entry forms Diabetes shared care message Discharge summary message
  21. 21. A worked example
  22. 22. Template Designer Walkthrough
  23. 23. Your tasks Problem/Diagnosis Rename Problem/Diagnosis archetype to Main Diagnosis Constrain out everything apart from Problem/Diagnosis name Pull in Adverse Reaction archetype Constrain out everything apart from Substance and Manifestation Rename Manifestation to Reaction Details and make mandatory Medication Order Clone Specific direction description Rename one to Dose and the other to Frequency Pull in Indirect Oximetry into Vital Signs section Constrain out everything apart from ratio Vital Signs Section Make systolic and diastolic BP mandatory Make all vital signs archetype single occurrence only

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