Error Guessing is a testing technique based on tester experience. Testers predict potential issues based on past failures and general knowledge.
Key Aspects:
1. Relies on tester intuition and experience
2. Uncovers issues not found by formal methods
3. Complements structured testing techniques
4. Focuses on likely problem areas
5. Adapts to specific application contexts
Common Areas for Error Guessing:
1. Input validation
2. Boundary conditions
3. Error handling scenarios
4. Unexpected user actions
5. Resource limitations
Benefits:
1. Identifies unique or obscure defects
2. Leverages tester expertise
3. Adapts quickly to new scenarios
4. Supplements formal testing methods
5. Can be cost-effective for finding certain issues