There are many factors that determine the superiority of a software product and they are quality, durability, efficiency and so on but the most important of all is quality. So it is the responsibility of the testers to make sure that the software product under testing is devoid of any defects. Now this can be ensured with the help of metrics. Metrics help to define, measure, and track quality goals for the project. 

When the software undergoes testing, a lot of information is obtained, which is the greatest source of metrics. Metrics are many such as testing metrics, process metrics, progress metrics, project metrics, defect metrics and so on. Testing metrics or test metrics helps to identify the errors in the current testing process, which in turn helps in enhancing the software testing process. The info like the real status, quality and productivity of the testing effort provided by test metrics helps to ensure the quality of the software. 

The advanced test management systems like Zephyr make the task easier for the testers by tracking these metrics and then updating it instantly in neatly arranged charts, summaries and data tables. Every info about the product release, be it track creation, execution and defects by release, priority or user is all just a click away.