Develop a Data Flow Diagram for a system a firm might use.

Pick a logistics firm (real or imaginary), pick a process or system running in that firm. Explain verbally (analyze) the purpose, the workings and users of this system.

Then based on this analysis draw Context Level, Level 0 and Level 1 diagrams.

The assignment can be (and in fact should be) done in groups. Analysis, Context and Level 0 Diagrams must be prepared jointly, however, every member should prepare a separate Level 1 (detail) diagram individually.