What is the main purpose of test case design techniques?

The primary purpose of test case design techniques is to ensure good test coverage and efficiency. By applying these techniques, testers can systematically derive test cases that address various aspects of the application, including functional requirements, boundary conditions, and error conditions. This systematic approach maximizes the effectiveness of testing efforts, allowing a broader range of scenarios to be tested within the limited time available.

Good test coverage means that a significant portion of the software is scrutinized for potential defects, thus increasing the likelihood of finding critical issues before the software is deployed. An efficient test design not only saves time and resources but also ensures that the tests are relevant and focused on high-risk areas. In this way, test case design techniques play a crucial role in optimizing the testing process, leading to more reliable and robust software products.