Product Metrics is classified as :

1. Project Metrics: A set of metrics that indicates how the project is planned and executed.

2. Progress Metrics: A set of metrics that tracks how the different activities of the project are progressing. It includes both development activities and testing activities. Progress Metrics is classified as a. Test defect metrics b. Development defect metrics

   a. Test defect metrics: help the testing team in analysis of product quality and testing

   b. Development defect metrics: help the development team in analysis of development

3. Productivity Metrics: A set of metrics that takes into account various productivity numbers that can be collected and used for planning and tracking testing activities. These metrics help in planning and estimating of testing activities.