What is a key characteristic of combinatorial testing?

Combinatorial testing is characterized by the testing of specific combinations of values of multiple parameters. This testing technique aims to efficiently cover various inputs and interactions, focusing on the combinations that might lead to different outcomes in the system under test. By systematically creating combinations, it ensures that the testing process is comprehensive enough to identify potential defects related to variable interactions, which can often be a source of errors in complex systems.

The methodology is founded on the principles of combinatorial mathematics, enabling testers to maximize coverage with a minimized set of test cases. It is especially valuable in scenarios where there are many input parameters, as it allows for a structured approach to testing that balances thoroughness with resource considerations.