Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.
SysML Activity Toolbox
When you are constructing SysML models, you can populate the Activity diagrams using the icons on the SysML Activity pages of the Diagram Toolbox.
The Block that owns the Activity diagram is automatically represented by a diagram frame enclosing the Activity diagram elements. You can:
| · | Hide the frame by right-clicking on the diagram and selecting the Hide Diagram Frame context menu option |
| · | Make the frame selectable to move or resize it, by right-clicking on it and selecting the Selectable context menu option |
| · | Create Ports and Parts on the frame and create connectors between them |
Access Diagram | Diagram Toolbox: More Tools | SysML 1.3 | SysML 1.3 Activity
SysML Activity Objects
Page |
Item |
Action |
|---|---|---|
SysML Activities |
Activity |
Defines a SysML Block of executable behavior as a UML Activity.
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Structured Activity |
Defines a SysML Block of executable behavior as a UML Structured Activity.
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Action |
Declares a unit of execution in an Activity as a UML Action.
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Action (call behavior) |
Declares a unit of execution that calls another behavior.
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Action (accept event) |
Declares a unit of execution that accepts an event raised by the system.
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Action (accept event timer) |
Declares a unit of execution that accepts an event raised by a time epoch.
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Action (send signal) |
Declares a unit of execution that sends a signal as an event.
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Action Pin |
Defines the data values passed out of and into an Action. (See also: Action Pin.)
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Partition |
Creates an Activity Partition to group execution elements according to the node responsible for their execution.
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Control Operator |
Controls the execution of an Activity.
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Parameter |
Provides access to input and output objects within the Activity.
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Parameter (optional) |
Defines a parameter whose contents are optional in the Activity's execution.
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Parameter (probability) |
Tags a parameter with the probability of the parameter being in use in the Activity.
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Object Node |
Declares a variable in the Activity, typed by a ValueType, DataType or Block.
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Object Node (no buffer) |
Declares an ObjectNode in an Activity that discards unconsumed tokens.
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Object Node (overwrite) |
Declares an ObjectNode in an Activity that overwrites tokens.
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Central Buffer Node |
Declares an ObjectNode that stores tokens for consumption throughout the Activity.
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Datastore |
Defines permanently stored data. (See also: Datastore.)
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Decision |
Creates a branch of control in an Activity, based on a decision.
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Merge |
Merges two or more Activity control branches.
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Synch |
Establishes a rendezvous point for two or more Activity flows, in order to synchronize their execution in the Activity.
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Initial |
Declares the start of an Activity's execution.
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Final |
Declares the end of an Activity's execution, and the termination of the Activity.
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Flow Final |
Declares the end of an Activity's execution path without terminating the Activity.
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Region |
Groups a subset of an Activity into a common execution context.
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Exception |
Declares a node of execution that happens outside the normal flow of execution of an Activity.
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Fork/Join |
Simultaneously branches / joins a set of Control or Object Flows.
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SysML Activity Relationships |
Control Flow |
Establishes a flow of logic between two Activity nodes.
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Control Flow (Continuous) |
Declares a continuous control flow.
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Control Flow (Discrete) |
Declares a discrete control flow.
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Control Flow (Probability) |
Tags a control flow with a probability of the likelihood of the flow's traversal.
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Object Flow |
Establishes a flow of objects (data) between two Activity nodes.
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Object Flow (Continuous) |
Declares a continuous object flow.
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Object Flow (Discrete) |
Declares a discrete object flow.
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Object Flow (Probability) |
Tags an object flow with the probability of the flow's traversal.
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Interrupt Flow |
Declares a control flow that interrupts flow within a Region.
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SysML Activity Extensions |
Enhanced Functional Flow Block Diagrams |
Declares an Activity used to contain an Enhanced Functional Flow Block Diagram (EFFBD).
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Streaming Activity |
Declares an Activity where the flow of tokens passes through its parameters continuously throughout the Activity's execution.
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Non-Streaming Activity |
Declares an Activity where the flow of tokens passes through its parameters at the start of the Activity's execution.
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