Ch21 - RecallTheTeamSkills 1. 2. 3. 4. 5....

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Recall The Team Skills 1. Analyzing the Problem (with 5 steps) 2. Understanding User and Stakeholder Needs 3. Defining the System 4. Managing Scope 5. Refining the System Definition 1. Software Requirements: a more rigorous look 2. Refining the Use cases 3. Developing the Supplementary Specification 4. On Ambiguity and Specificity 5. Technical Methods for Specifying Requirements 6. Building the Right System
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Chapter 21 Refining the Use Cases     How Use Cases Evolve  The Scope of a Use Case  Dependency Relationships  Extending Use Cases  Including Use Cases
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How Use Cases Evolve  The test for  enough  use cases should be the  following: A complete collection of use cases should  describe  all possible ways  in which the system can be used,  at a level of  specificity suitable  to drive design,  implementation, and testing. 
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The Scope of a Use Case Consider the use of  a recycling machine The customer  inserts  cans and bottles into the recycling machine,  presses  a button,  and  receives  a printed receipt that can be exchanged for  money. Are there   3 uses cases one use case to insert a deposit item,  another use case to press the button,  and another to acquire the receipt?  Or is it   just one  use case?
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The Scope of a Use Case Three actions occur , but one without the others is of little 
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Ch21 - RecallTheTeamSkills 1. 2. 3. 4. 5....

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