Boundary Value Analysis (BVA) is a software testing technique that focuses on testing the boundary values of input domains to identify defects. It involves testing at the edges of input ranges (minimum, maximum, just inside, and just outside the boundaries) to ensure the system handles these critical values correctly. Process includes:
Identify Boundaries:
- Determine valid input ranges
- Locate minimum and maximum values
Create Test Cases:
- Test at exact boundary values
- Test just inside and outside boundaries
Execute Tests:
- Run tests with boundary values
- Observe system behaviour
Analyse Results:
- Check for unexpected behaviour
- Identify any boundary-related errors
Benefits:
- Efficient error detection
- Comprehensive coverage of input ranges
This technique is effective for finding errors at the edges of valid inputs.