In data management, the acronym TDM stands for Test Data Management. TDM involves the processes and tools used to create, manage, and maintain test data for software testing. It ensures that testing environments have accurate and relevant data, which is essential for effective testing of applications. Proper TDM practices help in mitigating risks from data privacy issues, reducing the time and cost of testing, and improving overall software quality. By providing controlled and secure test data, organizations can enhance their development and testing efficiency.