Service concurrent state (UPDM - NAF aliases)
A Service Concurrent State is a proprietary element that is required to model UPDM in Modeler.
Creation
To create a Service Concurrent State:
• From a Service State Machine: right-click the Service State Machine, point to New, point to NAF, and then click Service Concurrent State.
• From an NSOV-4b Service State Model: click the Service Concurrent State button, and then click in free space on the diagram.
Service Concurrent State button, and then click in free space on the diagram.To create a new compartment on a Service Concurrent State:
• From a Service Concurrent State: right-click the Service Concurrent State, point to New, point to NAF, and then click Service Sequential State.
• From an NSOV-4b Service State Model: click the 
Service Concurrent Compartment button, and then click the Service Concurrent State.
Service Concurrent Compartment button, and then click the Service Concurrent State.Appearance
When shown on an NSOV-4b Service State Model, a Service Concurrent State appears as follows:
Relationships
The following relationships are of importance to a Service Concurrent State:
• UML Transitions link a Service Concurrent State to other State Diagram elements (NSOV-4b Service State Model).
• Service Function elements can be invoked by a Service Concurrent State: right-click the Service Concurrent State, point to Links, and then click Do Service Function.
• Service Operation elements can be invoked by a Service Concurrent State: right-click the Service Concurrent State, point to Links, and then click Do Service Operation.
• Service State Machine elements can be invoked by a Service Concurrent State: right-click the Service Concurrent State, point to Links, and then click Do Service State Machine.
The following sections provide information about how a Service Concurrent State is used in the model.
Create a Service Concurrent State from
Create from a Service Concurrent State
Only the UPDM elements that can be created from all UPDM elements (Alias, Definition, Information and Metadata).
Shown on these diagrams, tables and matrices
In addition to the NAV-2 Integrated Dictionary and NTV-1 Standards Profile, which can show all UPDM elements:
UPDM writeable properties
The following writeable properties are available on the Service Concurrent State tab of a Service Concurrent State element's Property Pages:
• URI