Data Flow Diagrams More detail from SmartDraw Word worksheet download

1. What is a data flow diagram?

2. Draw a table that shows the four most common DFD symbols.

Yourdon/De MARCO Gane/Sarson SSADM Unified

3. What is an external entity?

4. What is a process?

5. What do data stores do?

6. What are the four best practices for mapping data flow?

     7. Outline the four levels of DFD s?

8. Outline who uses Data Flow Diagrams and why they are useful.

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9 Draw a simple level 0 data flow diagram.

10 Describe a Level 1 Data Flow Diagram

11. Draw a Level 1 Data Flow Diagram

12., Draw a Level 2 DFD.

13. Outline the seven steps in constructing a data flow diagram.