System architecture diagram
 | Important information about System Architecture Diagrams: PTC introduced the System Architecture Diagram to cover the short comings of previous versions of UML for the real-time environment. Now that UML 2.0 has introduced the Composite Structure Diagram, the System Architecture Diagram is no longer required. As such, the System Architecture Diagram remains in Modeler for backward compatibility, but it will not be further developed in Modeler: for example, you cannot apply iconic Stereotypes to the System Architecture Diagram symbols. We recommend that you now model your system architecture using Composite Structure Diagrams, in accordance with UML 2.0. To help you migrate your System Architecture Diagrams to Composite Structure Diagrams, Modeler includes the System Architecture Migration Utility. For information about Composite Structure Diagrams, see Overview of the structure diagram. For information about the System Architecture Migration Utility, see Overview of System Architecture Migration utility. |
For information about System Architecture Modeling in Modeler, see System architecture overview.
A System Architecture Diagram shows a view of your System Architecture Model. You can have many System Architecture Diagrams in a model.
You can create a System Architecture Diagram through the context menu of a Package: right-click the Package, and select > > > . Alternatively, if you have configured to display New Diagram in the Quick Access Toolbar, select > .
You must use a System Architecture Diagram to create the following Model items:
Drop
External Connector
Point to Point ConnectionThe following sections provide information about how a System Architecture Diagram is used in the model. For more information about an item, property or model part, click it.
Shows these dictionary items
Like most diagrams, a System Architecture Diagram can show variability items and relationships. See Overview of variability items and relationships on diagrams.
For most diagram symbols, you can change the presentation of the symbol through the Style view options (See Style view options - all diagrams), and change the showing of Stereotypes and Tag Definitions through the Stereotypes view options (See Stereotypes view options for a symbol - all diagrams). When a symbol has additional view options for changing its presentation, this icon 
is shown - to see how the view options can change the presentation, click the icon.
is shown - to see how the view options can change the presentation, click the icon.
Actor
Board
Board IO Device (through Board)
Comment
Constraint
Dependency
Disk
Event (instance of) 
Interface Device
Multidrop Bus
SubsystemThese items (which are not documented in the reference topics) can also appear on a System Architecture Diagram:
• Frame Box - provides a way of adding a box or background image to the diagram.
- provides a way of adding a box or background image to the diagram.• Note - provides a way of adding text to the diagram.
- provides a way of adding text to the diagram.• Note Link - links a Constraint, Comment or Note to an item on the diagram.
- links a Constraint, Comment or Note to an item on the diagram.Properties
A System Architecture Diagram has these properties:
• Name
• Type
Owned by
Model
PackageUsed in these parts of the model
System Architecture ModelCan be linked to these dictionary items
Stereotype| | Like other diagrams in a Model, a System Architecture Diagram can be linked to an Activity Partition, Comment, Frame Box, General Node, General Flow, General Flow Diagram Node, Constraint (applied), General Flow Diagram Flow or Swimlane. |