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The authoring core provides the ability to create and manage change sets and properties – aspects that are common to all authoring services.
The LexEVS API and the LexGrid model have been designed to provide capabilities to make changes to the terminology elements such as code system or value sets.
However, the current LexGrid architecture and model is based on the premise that the information being provided is valid and consistent and is not designed to support partially formed artifacts such as concepts without associated codes , and associations that have a source but no target, etc.
The LexEVS authoring tasks task assumes that there is an external authoring tool that persists partially formed content and performs the necessary validation and reasoning tasks prior to their the content being incrementally loaded into the LexEVS services.
We see this as being a necessary separation, as the potential combination of editors, reasoners, terminology models, etc. other terminology management tooling is almost limitless, and each of these will have its own requirements when it comes to completeness and validity.
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Before the changed terminology content is sent to LexEVS Authoring API to process, the client application should make sure that the contents are valid.
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The intent of the change requests is as follows:
- NEW - to create a new versionable element
- MODIFY - to change the attributes of an existing versionable element
- VERSIONABLE - to change (or schedule a change of) the status of a versionable element within the context of the containing service.
- REMOVE - to remove a versionable element from the service. (Note that VERSIONABLE Retire should be used if the element and its history should remain.)
- DEPENDENT - no changes are to be made to the named element itself, but a versionable element whose identity is dependent upon this element is to undergo a change.
Additional information is available at: LexEVS Authoring
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