In order to document a door system for a underground railway system, the following activity
diagram has been modelled. You reconcile this diagram with your notes. Which two of the
following notes were not represented in the diagram?
Your notes:

A.
Double pressing of the door button countermands the currently running action.

B.
The tread is pulled in once the door is closed.

C.
The light-emitting diode is deactivated at the end of the process.

D.
If the door is open, it is subsequently closed.

E.
If the door is closed, it is subsequently opened.

Explanation: