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Questions and Answers
What is the purpose of requirements validation?
What is the purpose of requirements validation?
- To speed up development time
- To reduce rework costs (correct)
- To make the system more complex
- To ensure customer satisfaction
What are the different types of checks included in requirements validation?
What are the different types of checks included in requirements validation?
- Validity, consistency, completeness, realism, and reliability
- Validity, consistency, completeness, realism, and verifiability (correct)
- Accuracy, consistency, completeness, realism, and verifiability
- Validity, consistency, completeness, reliability, and verifiability
Which techniques can be used for requirements validation?
Which techniques can be used for requirements validation?
- Reviews, prototyping, and test-case generation (correct)
- Design, implementation, and deployment
- Coding, debugging, and testing
- Planning, execution, and monitoring
What is test-driven development?
What is test-driven development?
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Why is it difficult to show that a set of requirements meets a user's needs?
Why is it difficult to show that a set of requirements meets a user's needs?
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When might further requirements changes be needed after agreement on the requirements document?
When might further requirements changes be needed after agreement on the requirements document?
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Why is fixing a requirements problem more costly than repairing design or coding errors?
Why is fixing a requirements problem more costly than repairing design or coding errors?
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Study Notes
- Requirements validation checks if requirements define the system that the customer wants.
- Errors in requirements can lead to extensive rework costs.
- Requirements validation includes validity, consistency, completeness, realism, and verifiability checks.
- Requirements validation techniques include reviews, prototyping, and test-case generation.
- Developing tests from user requirements is part of test-driven development.
- It is difficult to show that a set of requirements meets a user's needs.
- Users need to picture the system in operation to understand how it fits into their work.
- Not all requirements problems are found during the validation process.
- Further requirements changes may be needed after agreement on the requirements document.
- Fixing a requirements problem is usually more costly than repairing design or coding errors.
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