Variability dependency
For automation interface information about a Variability Dependency (Dependency of type Variability through the automation interface), see Dependency (automation interface).
A Variability Dependency is a Dependency of type Variability. For reference information about Dependencies, see Dependency (dictionary item).
A Variability Dependency specifies that a Variant is an option for a Variation Point:
• An optional Variability Dependency specifies that a Variant can be included for a Variation Point.
• A mandatory Variability Dependency specifies that a Variant must be included when the Variation Point is included.
Create a Variability Dependency through any diagram:
• Click the 
Optional Variability Dependency button, click the Variation Point or Alternative Choice, and then click the Variant.
Optional Variability Dependency button, click the Variation Point or Alternative Choice, and then click the Variant.• Click the 
Mandatory Variability Dependency button, click the Variation Pont, and then click the Variant.
Mandatory Variability Dependency button, click the Variation Pont, and then click the Variant.When shown on a diagram, a Variability Dependency's notation is as follows:
For information about the View Options available for this symbol, see Variability view options - all diagrams.
On a diagram you can populate Variability Dependencies in the following ways:
• Right-click the diagram background, and select > .
This command populates missing Artifact, Excludes, Requires and Variability Dependencies between items shown on the diagram.
• Right-click a Variation Point, Alternative Choice or Variant, and select > .
This command populates missing Variability Dependencies for the item you right-clicked, adding to the diagram any Variation Points, Alternative Choices or Variants that are required to show those missing Variation Dependencies.
Note that only one Variability Dependency can be created between two items. If you create a Variability Dependency between two items and a Variability Dependency relationship already exists between those two items (either directly or via an Alternative Choice):
• If the existing Variability Dependency is not shown on the diagram, that Requires Dependency is added to the diagram.
• If the existing Variability Dependency is shown on the diagram, Modeler prevents you from creating another Variability Dependency.
In the Modeler panes, a short-cut symbol 
on the Variability Dependency's icon indicates that the item is a stub. For more information, see Stubs.
on the Variability Dependency's icon indicates that the item is a stub. For more information, see Stubs.