May be dynamically created.

Access can use a wide range of "wild card" features.

 A hardware register or control within a VXI, VME or CAMAC module - addressible to a single bit level.

 Portion of VME address space - single location or block (This includes VME addresses within VXI modules)

 Variable or procedure within a software module.
Provides control and monitoring, for example, of the Event Builder, High Voltage control system and the AutoFill control system.

 Any action linked to specfic class and object