Specifications

RM Discussions on the Reference Model (RM) specifications, including EHR model, Demographics, data types. AQL For discussions on the openEHR Archetype Query Language (AQL) specification. Please FORMAT your queries as MULTI-LINE! Entity/demographics Discussions about openEHR Demographics and Entity models and more generally MPIs & similar. Terminology Discussions on terminology use / interface / bindings in openEHR. Task Planning/GDL Use this category for discussing the Task Planning and related specifications, as well as the Guideline Definition Language (GDL). ITS Discussions on any of the Implementation Technology Specifications, i.e. derivatives from the abstract specs, including REST APIs, XSD, JSON, and HL7 FHIR interfaces. ADL Discussions on the openEHR ‘AM’ component, i.e. any of the Archetype or Template specifications. SM For discussions of the openEHR Service Model (SM). BMM/Expressions Discussions on BMM and EL specifications.

Topic	Replies	Views	Activity
About the Specifications category Specifications	0	2348	26 October 2019
Where are ‘description’ and ‘comment’ defined in the spec? Specifications	3	7	19 June 2025
Natural language based FLAT format and long container/element names ITS archetype	21	126	30 May 2025
How to record no change in a parameter (height or weight for example)? Specifications	11	113	22 May 2025
Missing constraints in JSON schemas ITS	0	15	22 May 2025
Remove DV_QUANTITY.property attribute in BMM files BMM/Expressions	12	37	9 May 2025
AQL issue with Same cluster used in multiple archetypes in the same template in version 2.0 AQL ehrbase , aql , archetype , template	5	84	9 May 2025
Can a VERSION belong to multiple VERSIONED_OBJECT containers RM	17	149	6 May 2025
Attestation 'Request' RM	8	853	24 April 2025
AOM2 plans on expression language ADL	5	56	21 April 2025
Terminology_id name list Specifications	40	184	15 April 2025
JSON Schema and OpenAPI: current state, and how to progress ITS rest-apis , json	42	4090	8 April 2025
Archetype_ID doesn't have namespace RM	3	44	1 April 2025
Demographic model improvements Entity/demographics	47	2383	19 March 2025
Removal of C_ATTRIBUTE existence matches {0} in OPT 2 generation ADL opt	6	55	26 March 2025
Referring to the enclosing composition from ACTION.instruction_details? Specifications	14	215	26 March 2025
Demographics api ITS demographics , rest-apis	1	29	14 March 2025
Generating UML diagrams from specifications Specifications	20	1749	11 March 2025
Determine template version used from a composition RM	16	529	27 February 2025
PATCH for persistent compositions Specifications	11	84	19 February 2025
Markdown in archetype definitions? Specifications archetype	22	130	14 February 2025
openEHR system_id syntax in specification ? ...and in practice (survey)? Specifications	13	168	21 January 2025
Entity IM usage of CLUSTER instead ITEM_STRUCTURE Entity/demographics	2	21	20 January 2025
BMM as JSON BMM/Expressions	4	62	19 January 2025
Directory folder in xml format ITS rest-apis	15	118	18 January 2025
Annotations in ADL1.4->2 ADL archetype , template	2	33	13 January 2025
OPT 1.4 Specification ADL template	26	1843	21 December 2024
Agreeing on optional user interface hints in templates Specifications ux , forms	51	2306	6 December 2024
Coding element and event names Specifications template	56	988	4 December 2024
Usage of Aliases in WHERE clause AQL	14	3348	2 December 2024