Ifd:IfdStatusEnum

The IfdStatusEnum enumeration is the enumeration representing xtdStatusEnum from the unification project. This enumeration is kept in a seperate schema.

Enumeration items:
 * DRAFT - for newly added concepts that are not checked by the responsible organisation
 * CHECKED - checked by the responsible organisation
 * APPROVED - the concept is approved by the responsible organisation.
 * INVALID - the concept is regarded as no longer a part of the library. The API will return the object but with the status invalid.
 * TRANSFERRED - the concept is merged with another concept and the guid will no longer be returned by the API. Instead the guid of the concept replacing this concept is returned. The replacement guid will be stored in the VersionId of the transferred concept.