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Exercise 1 Illustrate the methods for Data Validation.

Exercise 2 Illustrate the methods of Hardware Testing

Exercise 3

1. How can quality and efficiency for programs be assessed?

2. Explain briefly the black-box approach to the specification of a system and its functional definition.

3. Give a (new) simple example of pre-, post-condition and function specification.

4. When can a program be said correct with respect to a pre- and post- condition specification?

5. When can a program be said partially correct?

6. What is the weakest-precondition of a program?

7. Define total program correctness by weakest pre-condition.

Exercise 4 Read and summarise Brian Cantwell Smith's view on the limits of computer correctness.

Exercise 5 Describe the meanings of the term program illustrated by Fetzer in ‘Program Verification: The Very idea' and illustrate their associated notion of verifiability. Provide a basic explanation.

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