SM For discussions of the openEHR Service Model (SM). 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. Terminology Discussions on terminology use / interface / bindings in openEHR. AQL For discussions on the openEHR Archetype Query Language (AQL) specification. RM Discussions on the Reference Model (RM) specifications, including EHR model, Demographics, data types. ADL Discussions on the openEHR ‘AM’ component, i.e. any of the Archetype or Template specifications. Task Planning/GDL Use this category for discussing the Task Planning and related specifications, as well as the Guideline Definition Language (GDL). BMM/Expressions Discussions on BMM and EL specifications.