- Two new operators ‘childOf’ and ‘parentOf’ to support querying immediate children and immediate parents of a concept;
- The ability to add comments within the text of an expression constraint;
- A new 'dot notation' to refer to the value of an attribute of a concept or expression;
- The ability for a constraint operator to be applied to a nested expression constraint;
- Additional optional brackets around subexpressions; and
- The non-normative syntax (previously named the ‘Full Syntax’) has been renamed the ‘Long Syntax’.
The Machine Readable Concept Model (MRCM) represents the rules of the SNOMED CT concept model in a form that can be read by a computer and applied to test that concept definitions and expressions comply. The MRCM may be used for a variety of purposes, including the authoring and validation of SNOMED CT concepts, expressions, expression constraints and queries, Natural Language Processing and terminology binding to support semantic interoperability.
The draft SNOMED CT MRCM Specification is now available for your review at http://snomed.org/mrcm. This document presents the proposed design of the SNOMED CT MRCM, including the reference sets and attributes used to represent and distribute it. It also describes the background, use cases, requirements, logical design and design considerations, and is accompanied by a preview of the 20170131 SNOMED CT MRCM (represented using the proposed design).
Please submit all comments, via the feedback link at the bottom of each page, by Tuesday 8th November 2016.
Dear IHTSDO Community of Practice members,
The forthcoming IHTSDO October Business Meeting and SNOMED CT Expo 2016 in Wellington is set to be an exciting conference that breaks a lot of new ground! We hope to see as many of our community members as possible there, and so we would like to remind everyone that registration for both events is compulsory for all in-person attendees, and it will close at 23:00 UTC on Sunday 16th October 2016.
This deadline will be strictly upheld and no onsite registrations are available, so please make sure you complete both processes if you plan to attend in person. Remote attendance (via GoToMeeting) does not require registration.
Details of how to register can be found via the following links:
We hope to see you in Wellington!
Best wishes,
The IHTSDO Events Team