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- The addition of the concept does not inactivate existing inferred IS A relationships except to insert a new proximal ancestor (the intermediate concept); i.e. does not change the International release transitive closure table (except to add the additional row representing the new intermediate ancestor relationship). This necessitates the retention of transitive IS A relationships from the core.
- No non-IS A inferred relationships of core content are inactivated
- Additional inferred defining relationships to not create crossovers
- Additional inferred IS A relationships of subtypes do not represent a change in meaning.
- The intermediate concepts are submitted for promotion to the international release as soon as possible.
Fully define concepts they create
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