Overview
In this tutorial, we will explore the different types of testing metrics. A testing metric is a measurement that helps to determine specific characteristics of the software testing procedure. It enables us to gauge the testing process’s effectiveness, efficiency, progress, and quality.
Type of Testing Metrics
Software testing metrics are broadly classified into the following types:
- Base Metrics
- Derived or Calculated Metrics
Base Metrics
Base metrics are those obtained from raw data directly from testing activities without further computation. The test engineers gather these metrics through the testing effort. Base metrics is used to provide project status and evaluations/feedback.
Some examples of base metrics are as follows:
- Total number of tests executed
- Total number of tests not executed
- Total number of tests passed
- The total number of tests failed
- The total number of defects identified
Derived Metrics
Derived metrics are those measurements in software testing that are not directly measurable but are computed using two or more base metrics. Derived metrics convert base metrics data into more helpful information.
Some examples of derived metrics are as follows:
- Defect Density
- Defect Leakage
- Defect Rejection Ratio
- Defect Removal Efficiency (DRE)
- Test Case Effectiveness
- Percentage of Passed Test Cases
- Test Coverage