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	2355	26 October 2019
Element not allowed units_system in element list ADL template	9	98	10 November 2025
openEHR Ontoserver Terminology Server Terminology ontoserver , snomed-ct , fhir	2	32	8 November 2025
Natural language based FLAT format and long container/element names ITS archetype	22	186	6 November 2025
Storing and reading attestations RM	3	49	4 November 2025
Aproach on GDPR rights ...access, rectification, cancellation, opposition, portability, erasure, limitation Specifications	1	24	30 October 2025
Multilingual templates and templated value sets Specifications template	13	515	29 October 2025
Expanding BMM BMM/Expressions	3	60	23 October 2025
Looking ahead to openEHRv2 Specifications openehrv2	19	245	20 October 2025
Where to put an ICD-11 foundation URI? RM	4	59	13 October 2025
Template Better in XML? ADL template	10	627	7 October 2025
Questions about the assertion process Specifications attestation	2	38	6 October 2025
Why is the DV_TEXT <value> element missing when mapping terminologies with ORDINAL? ADL template	0	15	1 October 2025
AOM2 `EXPR_ARCHETYPE_REF` inherits `EXPR_VALUE_REF` ADL	2	26	16 September 2025
AUTHORED_ARCHETYPE.build_uid optional or mandatory? ADL	3	445	27 August 2025
Agreeing on optional user interface hints in templates Specifications ux , forms	52	2438	20 August 2025
Values for LINK.meaning RM links	5	369	7 August 2025
Terminology_id name list Specifications	43	266	30 July 2025
DEMOGRAPHIC model: does it make sense to have contacts and identities for ROLE? Specifications demographics	10	632	30 July 2025
OperationalTemplate XML Schemas Specifications opt , schema	7	335	29 July 2025
Is it possible to follow a link in AQL? AQL links , aql	25	156	26 July 2025
Does AQL support regular expressions in comparison operators? AQL cdr , aql	1	40	17 July 2025
The good, the bad and the "Wat?" of current simplified FLAT/SimSDT openEHR exchange format ITS sdt , flat	43	1371	25 June 2025
AQL querying on ISM and Careflow Steps AQL	4	560	21 June 2025
Where are ‘description’ and ‘comment’ defined in the spec? Specifications	3	25	19 June 2025
How to record no change in a parameter (height or weight for example)? Specifications	11	136	22 May 2025
Missing constraints in JSON schemas ITS	0	19	22 May 2025
Remove DV_QUANTITY.property attribute in BMM files BMM/Expressions	12	54	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	88	9 May 2025
Can a VERSION belong to multiple VERSIONED_OBJECT containers RM	17	184	6 May 2025