UML Modeling Techniques > System architecture modeling > System architecture modeling overview > Linking items on the system architecture diagram
Linking items on the system architecture diagram
The type of connection made between items on the System Architecture Diagram depends on the two items being linked.
Types of link:
Point-to-point connection—links disks, boards, interface devices and subsystems to each other.
Drop—connects the multidrop bus to a disk, board, interface device or subsystem.
External connector—links an actor to an interface device or a subsystem.
To link items
1. On the System Architecture Diagram toolbar, click the icon.
2. Click on the source item. A dotted line appears.
3. Click on the destination item.
The two items are now linked.
To amend a link
Change the properties of the point-to-point connection and external connector through the Options tab of the Property pages.
Point-to-point connection—describe the protocol, speed and width by linking to a point-to-point connection type.
External connector—change the direction of the interaction or make it bi-directional.
Attach event messages to external connectors to describe prompts between actors, interface devices and subsystems.