The relationship between use cases and data flow diagrams is:
A)Use cases tend to be developed with users to make sure the analyst has fully captured the processes and relationships;DFD's are built upon the use cases to more fully formally understand the processes involved
B)Both are tools in a systems analysts toolbox,although they do unrelated things
C)Use cases are developed by users exclusively;while DFD's are developed by analysts exclusively
D)Use cases come out of JAD sessions and clarify what was discussed by users in those sessions;DFD's come out of analysts interviews.
E)They are the same thing - use cases are process models using the DeMarco and Yourdon notation;and DFD's are process models using the Gane and Sarson notation.

Question

Quizplus · Accepted Answer

Use cases and data flow diagrams are both process modeling tools used by system analysts. Use cases are usually developed with the help of users to ensure that the analyst has fully captured the processes and relationships. Data flow diagrams are then built upon the use cases to more fully and formally understand the processes involved. Therefore, the relationship between use cases and data flow diagrams is that the latter is built upon the former.

The Relationship Between Use Cases and Data Flow Diagrams Is