Syllabus Conspect

Question 1

Errors, defects, failures

Answer 1

Error -> Defect (fault, bug) -> Failure

Question 2

Testing principles

Answer 2

1. Testing shows the presence, not absence, of defects
2. Exhaustive testing is impossible
3. Early testing saves time and money
4. Defects cluster together
5. Tests wear out
6. Testing is contaxt-dependent
7. Absence-of-defects fallacy