Package Merge in UML 2: Practice vs. Theory?

  title={Package Merge in UML 2: Practice vs. Theory?},
  author={Alanna Zito and Zinovy Diskin and J{\"u}rgen Dingel},
The notion of compliance is meant to facilitate tool interoperability. UML 2 offers 4 compliance levels. Level Li+1 is obtained from Level Li through an operation called package merge. Package merge is intended to allow modeling concepts defined at one level to be extended with new features. To ensure interoperability, package merge has to ensure compatibility: the XMI representation of the result of the merge has to be compatible with that of the original package. UML 2 lacks a precise and… CONTINUE READING
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