Command (UPDM - MODAF aliases)
Creation
To create a Command as a link that is not realized by any elements:
• From an OV-4 Typical Organizational Relationships Chart or SV-1 Resource Definition: click the Command Link button, click the source Organization Post or Role Type, and then click the destination.
Command Link button, click the source Organization Post or Role Type, and then click the destination.On the Select Conveyed Classifier dialog, create or select the Exchange Element that is the Command element's conveyed classifier.
• From an SV-10c Resource Event-Trace Description, click the Command Message button, in line with the required Statement click the source lifeline, and then click the destination lifeline.
Command Message button, in line with the required Statement click the source lifeline, and then click the destination lifeline.The source and destination Resource Role elements must use an Organization, Post, or Role Type as their type.
On the Select Conveyed Classifier dialog, create or select the Exchange Element that is the Command element's conveyed classifier.
To create a Command that is realized by a Resource Interface:
• From an SV-1 Resource Interaction Specification: click the Command button, and then click the Resource Interface.
Command button, and then click the Resource Interface.The source and destination Resource Role elements must use an Organization, Post or Role Type as their type.
On the Select Conveyed Classifier dialog, create or select the Exchange Element that is the Command element's conveyed classifier.
On the context menu, click the command for the destination element.
To create a Command that is realized by a Resource Connector or Service Channel:
• From an SV-2 Resource Communications Description: click the Command button, and then click the Resource Connector or Service Channel:
Command button, and then click the Resource Connector or Service Channel:◦ For a Resource Connector: the Resource Role elements that own the source and destination Resource Port elements must use an Organization, Post, or Role Type as their type.
◦ For a Service Channel: the Resource Role elements that own the source and destination Request and Service elements must use an Organization, Post or Role Type as their type.
On the Select Conveyed Classifier dialog, create or select the Exchange Element that is the Command element's conveyed classifier. On the context menu, click the command for the destination element.
To create a Command that is realized by a Function Edge (Control Flow) or Function Edge (Object Flow):
• From an SV-4 Functionality Description: click the Command button, and then click the Function Edge (Control Flow) or Function Edge (Object Flow).
Command button, and then click the Function Edge (Control Flow) or Function Edge (Object Flow).From the dialogs that appear, select the conveyed classifier, the source element of the Command, and the destination element of the Command.
The direction of the Command is set to the direction of the Function Edge (Control Flow) or Function Edge (Object Flow).
You can convert a Command to a Control or Resource Interaction: right click the Command, point to Convert To, and then click the required command.
Realizing Elements
A Command can be realized by many Resource Connector, Resource Interface, Function Edge (Control Flow) and Function Edge (Object Flow) elements.
To define that a Command is realized by an element:
• Drag the Command from a Modeler pane to the Resource Connector, Resource Interface, Function Edge (Control Flow), Function Edge (Object Flow) or Service Channel on a diagram.
• Drag the Command element's conveyed classifier from a Modeler pane to the Resource Connector, Resource Interface, Function Edge (Control Flow), Function Edge (Object Flow) or Service Channel on a diagram. On the Select Command dialog, select the Command.
• Right-click the Resource Connector, Resource Interface, Function Edge (Control Flow), Function Edge (Object Flow) or Service Channel, point to Links, point to Realized, and then click Command. From the dialog, select the Command elements that realize the element you right-clicked.
If you right-click the Resource Connector, Resource Interface, Function Edge (Control Flow), Function Edge (Object Flow) or Service Channel on a diagram, the Command elements you select are added to the diagram.
You can view which elements realize a Command on the Items tab of its Property Pages. In the Show Associated list, select Realization. Do not define realized elements through the Items tab.
When a Command is realized by an element, you can change the source and target elements of the Command to those of the realized element: on a diagram that shows the Command on the realized Resource Connector, Resource Interface, Function Edge (Control Flow), Function Edge (Object Flow) or Service Channel, right-click the Command, and then click Set Ends to Realizing Link Ends.
Appearance
When shown on an OV-4 Typical Organizational Relationships Chart or SV-1 Resource Definition, a Command Link appears as follows:
When shown on an SV-1 Resource Interaction Specification, SV-2 Resource Communications Description, or SV-4 Functionality Description, a Command realization appears as follows:
An SV-3 Resource Interaction Matrix shows how elements are related through Command relationships.
Relationships
To change a Command element's conveyed classifier: right-click the Command, point to Set, and then click Conveyed Classifier.
The following sections provide information about how a Command is used in the model.
Create a Command from
Create from a Command
In addition to 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 AV-2 Integrated Dictionary and TV-1 Standards Profile, which can show all UPDM elements:
UPDM writeable properties
The following writeable properties are available on the Command tab of a Command element's Property Pages:
• identifier
• URI