Data Flow Diagrams

This class explores Data Flow Diagrams (DFD) as tools to document the flow of information within an organization. The context level DFD and the first level detailed DFD will be explored.

Intro to DFDs.pdf

Video lecture on how to draw a DFD. Link

This link shows the student's rationale when drawing the DFD for a University registration system. Link

DFD Presentation. Link

Data Flow Diagram examples. Link

DFD Task

Attempt your own DFD. Remember the Context level DFD models the entire system. The level 0 or 1 DFD is detailed. It must include:

  • All the Entities from the context level
  • All data stores from the context level
  • all data flows from the context level
  • Then you add the additional detail required.

Here is the link to the exercise. Attempt it first then move down in the document online for the suggested answer.

Complete and Continue