CWM12 — package may fail to permit definition of transformations

Usage experience with the CWM 1.0 Transformation package has
uncovered several situations in which the package may fail to permit
definition of transformations that fully capture the intent of implementors.
Such problems have appeared in several unrelated modeling venues and have
led some implementors to seek alternative means for describing
transformations. The existing transformation package should be reviewed by
the RTF and changed as needed to improve its ability to represent the
breadth of transformation semantics found in practical usage scenarios. As
part of this effort, the RTF should consider incorporating the existing
TypeMapping package into an evolved Transformation package – TypeMappings
are, after all, really just lightweight transformations.