What type of testing is performed to expose defects in system interfaces?

Test Integration is the appropriate type of testing performed to expose defects in system interfaces. This process focuses on verifying that various components or systems work together as intended. During integration testing, individual units or modules are combined and tested as a group, allowing testers to identify issues that may arise when different systems interact, such as data exchange errors or protocol mismatches.

This stage is crucial because it helps ensure that the integrated components function correctly as a whole, reflecting real-world usage where interfaces between systems are often prone to defects. By targeting the interactions between linked systems, integration testing plays a vital role in delivering a seamless user experience in software applications.

In contrast, unit testing is concerned with testing individual components in isolation, while regression testing aims to confirm that recent changes have not adversely affected existing features. Acceptance testing evaluates whether the entire system meets business requirements, but it does not specifically focus on interface defects. Therefore, Test Integration is key for identifying issues at the points where systems connect.