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Explain the rules for drawing good DFDs. How can DFDs be sued as analysis tools? Explain the guidelines for deciding when to stop decomposing DFDs.

Explain the rules for drawing good DFDs.

How can DFDs be sued as analysis tools?

Explain the guidelines for deciding when to stop decomposing DFDs.

How do you decide if a system component should be represented as a source/sink or as a process?

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