[Odrl-version2] Core Model: relationship between Action and Duty

[Francis Cave]

In the revised Core Model a Duty is defined in terms of a single Action.
Figure 2.1 appears to suggest that for any given Action there can only be a
single Duty, and vice versa. Is this an error in the diagram? It must surely
be possible to define multiple Duties that involve the same Action,
presumably involving different Assets or different Constraints. Indeed,
would not the same apply to Permissions and Prohibitions, involving the same
Action but with different Constraints in each case? 

 

Maybe it is felt that these are complex cases that require the kind of
"extended relations" that are discussed in Section 5, Experimental Features,
and should be deferred to a future version.

 

Francis

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