Final answer:
The Data Flow Diagram (DFD) technique illustrates the flow of data among areas of responsibility in an organization.
Step-by-step explanation:
The technique that illustrates the flow of data among areas of responsibility in an organization is the Data Flow Diagram. A Data Flow Diagram (DFD) is a graphical representation of the flow of data within a system. It shows how data moves from one process to another, and how it is stored or transformed along the way.