Deriving system level functional interfaces by using sequence diagrams

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Sequence diagrams derive system level functional interfaces.

Before you begin

Verify that all sequence diagram messages and operations are realized.

About this task

You can use a sequence diagram to derive system level functional interfaces, also known as logical interfaces. At this point during the functional analysis phase, functional interfaces pertain only to the system as a whole; subsystem interfaces are defined later during this phase. You can perform this task manually, or you can use the SE-Toolkit to automatically create the required ports and interfaces.
Tip: Avoid using long sequence diagrams for this task.
Roles:
  • Systems engineers
Artifacts:
  • Sequence diagrams

Procedure

  1. In the model browser, navigate to the BBScenariosPkg.
  2. Right-click the BBScenariosPkg, then select SE-Toolit > Ports and Interfaces > Create Ports and Interfaces.
  3. Right-click in the internal block diagram, then select SE-Toolit > Connect Ports.