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What does use case mean

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Reference no: EM131267602

Q1)- What is the relationship between level 0 and level 1 DFD diagrams? Explain.

Q2)- What does Use Case mean? and what does use case describe?

Q3)- What does triggers mean in use case, and what are the trigger types? and who's usually be a trigger?

Q4)- Describe the best way to validate the content of use cases.

Q5)- What is the purpose of an intersection entity? Describe the steps used to create an intersection entity?

Reference no: EM131267602

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What does use case mean : Q1)- What is the relationship between level 0 and level 1 DFD diagrams? Explain. Q2)- What does Use Case mean? and what does use case describe?
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