What is the primary aim of confirmation testing?

Confirmation testing, often referred to as re-testing, focuses specifically on verifying that defects identified in earlier testing stages have been successfully fixed. The primary aim is to confirm that changes made to the software have effectively resolved the issues that caused the previous test cases to fail. This process involves executing the same tests that initially failed and ensuring that the outcomes now pass as expected.

In confirming the success of fixes, testers can provide assurance that the reported issues have been correctly addressed and that no unintended side effects have occurred as a result of the changes. This is particularly crucial in agile environments where rapid iterations and deployments are common, and quality must be maintained despite frequent updates.

While the other options address important testing aspects—like documenting requirements, assessing user experience, or analyzing performance metrics—they do not align with the primary intent of confirmation testing, which is explicitly centered on verifying that reported defects are resolved.