What are Design Assurance Levels, what are they useful for? How is the idea of requirements traceability related to Nancy Levenson's statements regarding the causes of failures?

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Software Testing

Read through this paper from the ACM-Queue Magazine and answer the following questions.

 

1. What are Design Assurance Levels, what are they useful for?
2. How is the idea of requirements traceability related to Nancy Levenson's statements regarding the causes of failures?
3. What are the characteristics of a "good" or well stated requirement?
4. Which are some common causes for failure of the SCA?
5. Discuss some advantages of relying on a Qualified Verification Tool to support Requirements
6. Justify the role and modus operandi of the DER

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