The Relationship Between Use Cases and Data Flow Diagrams Is

Multiple Choice

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.