SPTP — Section 4.1.4

introduces the dimension protection, “which identifies whether the device is protected against concurrent access or not”. Some resources can be qualified as protected and concurrent at the same time if the resource capacity is limited. The attribute Capacity in page 6.5 introduces the Multi-Unit objects. A good example of these kind of resources are the multi-thread objects of RT-CORBA [9]. The access is controlled with specific policies, but the concurrent access is limited. In page 4.18 the class ProtectedResource includes the attribute AccessControlPolicy ”that control access to the exclusive services

Closed, no change