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Paper 2
Software Testing and Development
Both
Structured testing prevents costly bugs.
Key Facts
- Normal test data is within expected range.
- Boundary data tests limits of the range.
- Erroneous data checks validation and error handling.
Topics Covered
Test Strategy
What you need to know
- •Use normal, boundary, and erroneous test data.
- •Create expected outcomes before testing.
Exam Tips
- Explain why each test case is important.
Debugging
What you need to know
- •Find and fix logic, syntax, and runtime errors.
- •Use trace tables or dry runs to locate issues.
Exam Tips
- Describe the error type and how to fix it.
Maintainability
What you need to know
- •Use comments and meaningful names for clarity.
- •Refactor code to improve readability.
Exam Tips
- Link good documentation to easier updates.
Key Terms
validation
Automated checks that data is reasonable.
verification
Checking data is entered correctly.
debugging
Finding and fixing errors in code.
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Common Exam Questions
Explain the difference between validation and verification.
3 markseasyPaper 2
Model Answer
Validation checks data is sensible; verification checks it is entered correctly.
What examiners want to see
- ✓Both definitions
- ✓Clear contrast
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