| Element | |
|---|---|
| Description | The Control Flow connects the initial node of an activity diagram with the final node. In between, you can add several action nodes. |
| Attributes |
|
| Particularity | If the control flow starts from a decision, it has two more specific attributes. |
Specific Attributes
| Attribute Name | Description | Possible Values / Example | Availability | |
|---|---|---|---|---|
| Guard | Control flows that are starting from a decision node need to have a guard expression. A guard expression is an expression that evaluates to true or false, and specifies which control flow branch to follow from the decision node on. One of the guard expressions must be | true | Follow this branch. |
|
| false | Do not follow this branch. | |||
| Order | If a decision node branches the control flow into multiple branches, order defines the order in which the guard expressions (see Guard above) should be evaluated. This is necessary in case multiple guard expressions evaluate to true. The | an integer | Order in which the guard expression on this control flow should be evaluated. |
|
| empty | Undefined order of evaluation. | |||
Overview
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