Conclusions

• UML has many of the right concepts to express ODP Enterprise Specifications, but there are a number of constraints that make direct expression in UML difficult.
• There are still a number of options to be investigated.
• Much depends on clarifications of the UML semantics, both by the OMG and by the de facto actions of the tool vendors.
• It may be better to work with an additional specification management layer which flattens snapshots of a particular state of specification and policy selection into UML.

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