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Structured Activity
Structured Activity elements are used in Activity diagrams. A Structured Activity is an activity node that can have subordinate nodes as an independent Activity Group. You can set an option to ensure that no other Activities or their side effects interfere with this Activity's processing (the 'Must Isolate' checkbox in the Structured Activity element 'Properties' dialog).
Enterprise Architect provides a number of forms of Structured Activity, both basic and specialized.
Access
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Ribbon |
Design > Diagram > Toolbox : Specify 'Activity' in the 'Find Toolbox Item' dialog |
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Keyboard Shortcuts |
: |
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Other |
You can display or hide the Diagram Toolbox by clicking on the |
> Specify 'Activity' in the 'Find Toolbox Item' dialog
or 
icons at the left-hand end of the Caption Bar at the top of the Create Structured Activities
When you drag a Structured Activity icon from the Toolbox onto a diagram, a short menu displays from which you select one of these options:
- Loop Node
- Conditional Node
- Other
The first two options specifically create a Loop Node or Conditional Node.
The 'Other' option displays the 'New Structured Activity' dialog, on which you can select to create one of five types of Structured Activity element.
Structured Activity Types
Type |
Description |
See also |
|---|---|---|
|
Simple Composite Activity |
Generates a Composite Activity element with a child Activity diagram. |
Activity Composite Elements |
|
Loop Node |
Represents a sequence of Actions and Activities that are to be repeated within the object. |
Loop Node |
|
Conditional Node |
Represents an arrangement of Actions and Activities where choice determines which Activities are performed. |
Conditional Node |
|
Structured Activity Node |
Represents an ordered arrangement of executable Activity nodes (Actions, Decisions, Merges and so on) that can include branched and nested nodes; this is the base element from which the other types of Structured Activity are derived. |
Structured Node |
|
Sequential Node |
Represents a sequential arrangement of executable Activity nodes. |
Sequential Node |
Notes
- To protect the processing of a Loop or Conditional Node Structured Activity from interference from other Activities or their side effects, open the Properties window and select the 'Must Isolate' checkbox on the 'Loop' or 'Condition' tab
Toolbox icon
