You have been carefully monitoring the progress of testing for your project.

The most likely cause of the traceability breakdown in the testing area is that the testers are not updating the test execution information in the test management system. This is because the test management system is a tool that supports the test process, and it can store and manage the test documentation, such as the requirements, the test conditions, the test cases, and the test results. If the testers do not update the test execution information in the test management system, such as the test cases that are run, the test results that are obtained, and the defects that are found, the traceability between the test cases and the test conditions will be lost or inaccurate. This can affect the test analysis and reporting, and the test coverage measurement. Test Management - ISTQB not-for-profit association References: Certified Tester Advanced Level Test Manager (CTAL-TM) - ISTQB not-for-profit association, ISTQB Test Manager Certification - ISTQB Exams Worldwide - ISTQB Official Registration, Test Management - ISTQB not-for-profit association