UML Modeling Techniques > System architecture modeling > System architecture modeling overview > Constructing a system architecture model
Constructing a system architecture model
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 (System Architecture Migration utility).
Construct a System Architecture Model through the Relationships pane and other panes. Expand the System Architecture Model folder to display the structure of the System Architecture Model. System Architecture Model items are organized hierarchically, with folders containing items of a particular type and their links to other items.
Add items to the dictionary and drag items between folders to build up the System Architecture Model. You can automatically populate a System Architecture Diagram with information that you have added.
A System Architecture Diagram includes the following elements:
Interface device
Using item types
Multidrop bus
Linking items
Event messages