Known errors:
ERROR: DateTime in SamplingEvent needs to be changed to optional (refactoring error from AbstractEvent) (Gregor)
ERROR: Identity constraint on SampleEvent id (with keyref on BasedOnSample ref is broken). (Gregor)
Double restriction on ZeroToOneRange is broken: The attribute 'verbatim' cannot be introduced by restriction since it
is not allowed in the base type ZeroToOneRange. (Jacob)
Previous discussions: DiscussionFor101b7, DiscussionFor1dot1beta8, DiscussionFor1dot1beta9
-- GregorHagedorn - 04 May 2006