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Software testing metrics are quantifiable measures that help teams evaluate the effectiveness, efficiency, and quality of their testing efforts. Beyond simply counting test cases executed or defects found, these metrics provide insights into how well testing activities contribute to overall software quality and project goals.

Key software testing metrics include defect density, which measures the number of defects per unit of code; test coverage, which indicates the percentage of requirements or code tested; and defect leakage, which identifies defects that escape into production. Other useful metrics include test execution rates, automation pass/fail percentages, and mean time to detect or fix defects.

By tracking these metrics over time, teams can identify trends, evaluate the efficiency of their test processes, and make data-driven decisions. Effective use of software testing metrics helps optimize resource allocation, improve test planning, and ensure higher-quality releases. They also provide visibility for stakeholders, enabling more informed decisions regarding release readiness, risk management, and process improvements.

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