A new patient calls up an optometrist office to make an appointment.On a DFD diagram,the new patient would be represented by:
A) a data flow
B) a process
C) an external entity
D) a trigger
E) a data store

Question

Quizplus · Accepted Answer

An external entity represents an entity outside the system boundary that interacts with the system, in this case, the new patient calling the optometrist office. Therefore, the new patient would be represented by an external entity on the DFD diagram.

A New Patient Calls Up an Optometrist Office to Make