| http://www.w3.org/ns/prov#value | - Suppose that a role-based system has defined three roles as follows: Role No. Definition 1 IF the user is in marketing AND the user is a manager AND the user travels less than 30% of the time, THEN provision the user with a pager; 2 IF the user is in marketing AND the user is a manager AND the user travels between 30% and 60% of the time, THEN provision the user with a cellular telephone; 3 IF the
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