The best description of the purpose of an intermediate error event is that it is a boundary event attached to the boundary of an activity. It indicates alternate sequence flow begins when an error occurs.
Option A and B are correct
An intermediate error event is a type of boundary event that is attached to the boundary of an activity. It indicates that an alternate sequence flow begins when an error occurs during the execution of that activity. The intermediate error event itself does not model the error handling routine; instead, it serves as a trigger for the execution of the error handling routine.
It is modeled with a leaning Z or flash sig is true of message boundary events and timer boundary events, but not intermediate error events.
complete question:
Which of the following best describes an intermediate error event? Multiple Choice
A. It is a boundary event attached to the boundary of an activity.
B. It indicates alternate sequence flow begins when an error occurs.
C. It is modeled with a leaning Z or flash sign.
D All of the choices describe intermediate error events.
E. None of the choices describe intermediate error events.