Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.
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.
Design > Diagram > Toolbox : Specify 'Activity' in the 'Find Toolbox Item' dialog
: > Specify 'Activity' in the 'Find Toolbox Item' dialog
You can display or hide the Diagram Toolbox by clicking on the or icons at the left-hand end of the Caption Bar at the top of the Diagram View.
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
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
Simple Composite Activity
Generates a Composite Activity element with a child Activity diagram.
|Activity Composite Elements
Represents a sequence of Actions and Activities that are to be repeated within the object.
Represents an arrangement of Actions and Activities where choice determines which Activities are performed.
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.
Represents a sequential arrangement of executable Activity nodes.
- To protect the processing of a Loop or Conditional Node Structured Activity from interference from other Activities or their side effects, open the Element Properties window and select the 'Must Isolate' checkbox on the 'Loop' or 'Condition' tab