What is the primary focus of Boundary Value Analysis testing?

Boundary Value Analysis (BVA) is a testing technique that specifically targets potential errors at the edges of input value ranges. The fundamental premise of BVA is based on the idea that errors are more likely to occur at the boundaries of input domains rather than in the center. This is particularly relevant because many programming errors arise from handling boundary conditions incorrectly.

For example, if a system accepts input values ranging from 1 to 100, Boundary Value Analysis would involve testing values such as 1, 100, 0, and 101— these represent the boundaries as well as just outside the boundary limits. By focusing on these critical points, test cases can more effectively find bugs that may not surface when testing only the normal values within the range.

The alternative choices focus on different aspects of testing. Evaluating system performance relates to load testing, ensuring functional requirements are met pertains to requirements-based testing, and improving automation addresses methods for streamlining testing processes. While these aspects are important in the wider context of software testing, they do not align with the specific objectives and methodologies of Boundary Value Analysis, which is primarily concentrated on identifying errors at the boundaries of input values.