Test Data Visualizer within CA Test Data Manager can be used to accurately model the combinations of data values found in a database or live message traffic. De-duplication and automated rule-learning from CA Agile Requirements Designer can then be used to reverse-engineer a flowchart of what variables exist, and how they relate. The exact data needed for testing can be quickly identified and technical debt can be paid off, gaining an in-depth understanding of how data flows through a system.