This sequence diagram shows the interaction between a UCH, TA and UIPM when a target aborts a session. Note that indentation reflects nesting of calls.

General remark:

• For simplicity, we assume that the UCH object itself is the UIPMListener and TAListener. In general, these might be separate objects.

Sequence of actions:

• A TA is loaded, initialized and a target registered (see diagram on Target Discovery above). A session is opened (see diagram on Session Management above).
• A UIPM is loaded, and opens a session. See diagram on Session Management above.
• TA calls UCH: void abortSession(string sessionId)
  • UCH calls UIPM: void sessionAborted(string sessionId)