UPDMRTF — Mapping to DM2 higher level elements:

Currently UPDM does not map a numer of elements that exist in DM2, namely those above the Type level, for example CapabilityType since UML does not support elements at higher type levels. There is however a possibility of doing this by recognising that a set of capabilities (as an example) contains a given capability instance but capability categoreis are really a larger subset of available capabilities. This would make it possible by allowing the elements to contain a tagged value that indicates whether they are to be considered at a higher type level. This would make it possible to provide a mapping between more DM2 elements and UPDM elements than currently possible. It is assumed that a tagged value would be easier to handle than the introduction of additional stereotypes since categories would imply elements with different stereotypes inheriting from one another.