Operational input pin (UPDM - MODAF aliases)
An Operational Input Pin is a proprietary element that represents an Operational Parameter.
Creation
• From an OV-5 Operational Activity Model: click the 
Input Pin button, and then click the edge of the owning Operational Activity Action or Node Operation Action. From the context menu, point to New Pin, and then click the required command:
Input Pin button, and then click the edge of the owning Operational Activity Action or Node Operation Action. From the context menu, point to New Pin, and then click the required command:◦ Click New Parameter to create a new Operational Parameter and a new Operational Input Pin to represent that Operational Parameter.
◦ Click the command for an Operational Parameter to create a new Operational Input Pin for that Operational Parameter.
The name of an Operational Input Pin is set to that of the Operational Parameter it represents.
On creation of an Operational Activity Action or Node Operation Action, Modeler creates an Operational Input Pin to represent each Operational Parameter (Mechanism of In or InOut) of the Operational Activity or Standard Operational Activity that is used as the type of the Operational Activity Action or Node Operation Action.
Note that after creating an Operational Activity Action or Node Operation Action, Operational Input Pin elements are not automatically created for new Operational Parameter elements that are created on the associated Operational Activity or Standard Operational Activity.
Appearance
When shown on an OV-5 Operational Activity Model, an Operational Input Pin appears as follows:
Relationships
The following relationships are of importance to an Operational Input Pin:
• On the Items tab of an Operational Input Pin element's property pages, you can view and navigate to the Operational Parameter that is represented by the Operational Input Pin through the Linked Item association.
The following sections provide information about how an Operational Input Pin is used in the model.
Create an Operational Input Pin from
Create from an Operational Input Pin
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 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 Operational Input Pin tab of an Operational Input Pin element's Property Pages:
• URI