Entities( External Agent (Source/Sink)) Entities include source and destination of the data. Entities are represented by rectangle with their corresponding names.
Entities( External Agent (Source/Sink)) Entities include source and destination of the data. Entities are represented by rectangle with their corresponding names.
An external agent represents an entity with which the system communicates and which is outside the scope of the system e.g. an outside organization or individual, another department or another system, a person or group within the department supported by the system who interacts with the system
