Specifications

AQL For discussions on the openEHR Archetype Query Language (AQL) specification. Please FORMAT your queries as MULTI-LINE! RM Discussions on the Reference Model (RM) specifications, including EHR model, Demographics, data types. 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	2350	26 October 2019
AUTHORED_ARCHETYPE.build_uid optional or mandatory? ADL	3	435	27 August 2025
Agreeing on optional user interface hints in templates Specifications ux , forms	52	2336	20 August 2025
Values for LINK.meaning RM links	5	364	7 August 2025
Terminology_id name list Specifications	43	255	30 July 2025
DEMOGRAPHIC model: does it make sense to have contacts and identities for ROLE? Specifications demographics	10	621	30 July 2025
OperationalTemplate XML Schemas Specifications opt , schema	7	328	29 July 2025
Is it possible to follow a link in AQL? AQL links , aql	25	146	26 July 2025
Does AQL support regular expressions in comparison operators? AQL cdr , aql	1	32	17 July 2025
The good, the bad and the "Wat?" of current simplified FLAT/SimSDT openEHR exchange format ITS sdt , flat	43	1358	25 June 2025
AQL querying on ISM and Careflow Steps AQL	4	553	21 June 2025
Where are ‘description’ and ‘comment’ defined in the spec? Specifications	3	20	19 June 2025
Natural language based FLAT format and long container/element names ITS archetype	21	149	30 May 2025
How to record no change in a parameter (height or weight for example)? Specifications	11	130	22 May 2025
Missing constraints in JSON schemas ITS	0	17	22 May 2025
Remove DV_QUANTITY.property attribute in BMM files BMM/Expressions	12	51	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	86	9 May 2025
Can a VERSION belong to multiple VERSIONED_OBJECT containers RM	17	157	6 May 2025
Attestation 'Request' RM	8	855	24 April 2025
AOM2 plans on expression language ADL	5	61	21 April 2025
JSON Schema and OpenAPI: current state, and how to progress ITS rest-apis , json	42	4104	8 April 2025
Archetype_ID doesn't have namespace RM	3	45	1 April 2025
Demographic model improvements Entity/demographics	47	2400	19 March 2025
Removal of C_ATTRIBUTE existence matches {0} in OPT 2 generation ADL opt	6	57	26 March 2025
Referring to the enclosing composition from ACTION.instruction_details? Specifications	14	221	26 March 2025
Demographics api ITS demographics , rest-apis	1	33	14 March 2025
Generating UML diagrams from specifications Specifications	20	1765	11 March 2025
Determine template version used from a composition RM	16	548	27 February 2025
PATCH for persistent compositions Specifications	11	87	19 February 2025
Markdown in archetype definitions? Specifications archetype	22	133	14 February 2025