UML22 — "ownedType" is not a valid element

Having implemented a UML 2 L0 addin for Rational Rose, I exported a sample model to XMI. When this XMI file was imported into another UML2 tool, the tool failed, indicating that "ownedType" is not a valid element. Examination of the Infrastructure Library reveals why this is so. In the InfrastructureLibrary's Basic package (the basis for UML2 L0), the sole means by which a Package owns items is the "ownedType" reference. However, in The Constructs package (the basis for UML 2 L1 and beyond), this reference is now indicated as derived, meaning that it will not be handled by most UML 2 tools. It has been replaced by the "ownedMember" reference, which is unknown to UML 2 L0.

This is a showstopper issue with respect to UML2 XMI interoperability, since it means that a UML2 tool operating at Level 0 cannot interchange models with UML2 tools operating at any other level.

Discussion
This issue has already been resolved by, or no longer applies to, the UML 2.5 Beta 1 specification.
Disposition: Closed - No Change