§Since the specification
isn’t finalized, the API is a moving target
§
§The
current structure of the standard metamodel (w.r.t. package merge,
redefinitions, subsets/supersets) makes the mapping to Java difficult
§
§An XMI
schema based on the current specification could not be used
for interchange without transformations
§
§There are
a number of errors in the specification which, until fixed, make
the API and XMI schema difficult to use
§
§Compliance
points for UML™ 2.0 are a subject of much debate within the
modeling community