PROCESS MODELING
ELEMENTS OF DATA FLOW DIAGRAMS
APPLYING THE CONCEPTS AT TUNE SOURCE
Context Diagram
THE LEVEL 0 DATA FLOW DIAGRAM
CONVERTING FROM USECASE TO DATAFLOW
LEVEL 1 DATA FLOW DIAGRAMS(SEARCH &BROWS TUNES)
LEVEL 1 DATA FLOW DIAGRAMS(PURCHASE TUNES)
LEVEL 1 DATA FLOW DIAGRAMS(PROMOTE TUNES)