# Modeling Advisory Group

**URL:** https://forums.snomed.org/c/groups/mag/48.md

[Latest](https://forums.snomed.org/latest.md) · [Categories](https://forums.snomed.org/categories.md) · [Tags](https://forums.snomed.org/tags.md)

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## [About the Modeling Advisory Group category](https://forums.snomed.org/t/about-the-modeling-advisory-group-category/523)

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**Author:** [@system](https://forums.snomed.org/u/system)\
**Replies:** 0\
**Last updated:** [October 15, 2025, 12:34pm UTC](https://forums.snomed.org/t/about-the-modeling-advisory-group-category/523 "2025-10-15T12:34:13Z")

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This is the discussion area for the Modeling Advisory Group. If you would like to join the group, please request to join the Modelling Advisory user group here.

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## [On the use of observables in concept definitions](https://forums.snomed.org/t/on-the-use-of-observables-in-concept-definitions/1608)

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**Author:** [@echeetham](https://forums.snomed.org/u/echeetham)\
**Replies:** 1\
**Last updated:** [September 29, 2026, 3:25pm UTC](https://forums.snomed.org/t/on-the-use-of-observables-in-concept-definitions/1608 "2026-09-29T15:25:40Z")

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Dear MAG An addition to the September 2026 Editorial Guide (‘Findings and Observables’) caught my eye. It states: “The term observations should not be confused with Observable entity. Observable entity is the name of s…

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## [How should we measure quality in SNOMED CT?](https://forums.snomed.org/t/how-should-we-measure-quality-in-snomed-ct/1300)

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**Author:** [@pwilliams](https://forums.snomed.org/u/pwilliams)\
**Replies:** 5\
**Last updated:** [June 25, 2026, 12:11am UTC](https://forums.snomed.org/t/how-should-we-measure-quality-in-snomed-ct/1300 "2026-06-25T00:11:51Z")

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SNOMED International has validation tests and KPIs that track SNOMED CT content quality, largely focused on structural aspects such as RF2 compliance, template adherence and avoidance of specifically identified “patterns…

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## [Ontological Remodelling of the SNOMED CT Morphology Hierarchy](https://forums.snomed.org/t/ontological-remodelling-of-the-snomed-ct-morphology-hierarchy/1299)

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**Author:** [@pwilliams](https://forums.snomed.org/u/pwilliams)\
**Replies:** 0\
**Last updated:** [May 5, 2026, 1:36pm UTC](https://forums.snomed.org/t/ontological-remodelling-of-the-snomed-ct-morphology-hierarchy/1299 "2026-05-05T13:36:22Z")

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At our meeting in Vienna this April, @Stefan\_Schulz presented the Morphology Model paper he’s been evolving with @ygao and @dkarlsson, which can be accessed here: Ontological Remodelling of the SNOMED CT Morphology Hi…

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## [Modeling Advisory Group Notifications](https://forums.snomed.org/t/modeling-advisory-group-notifications/1104)

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**Author:** [@pwilliams](https://forums.snomed.org/u/pwilliams)\
**Replies:** 1\
**Last updated:** [May 1, 2026, 4:01pm UTC](https://forums.snomed.org/t/modeling-advisory-group-notifications/1104 "2026-05-01T16:01:45Z")

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MAG agenda and pre-reading for the Vienna SNOMED Business Meetings April 2026 Hello Modeling Advisory Group The April Business Meeting in Vienna will be held at the Andaz Vienna Am Belvedere hotel. If you have not reg…

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## [Informational briefing note - end stage renal diseases](https://forums.snomed.org/t/informational-briefing-note-end-stage-renal-diseases/797)

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**Author:** [@ygao](https://forums.snomed.org/u/ygao)\
**Replies:** 0\
**Last updated:** [November 27, 2025, 11:42am UTC](https://forums.snomed.org/t/informational-briefing-note-end-stage-renal-diseases/797 "2025-11-27T11:42:42Z")

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Hi all, Please see the informational briefing note on Inactivation of the outdated 'end-stage renal disease' concepts to align with Chronic Kidney Disease staging Kind regards, Yong