It is a metric that determines the code covered during the test runs.
Test coverage = line of code covered by test*100/total lines of code
This classification is based on the facets of the application prioritized in the coverage.
This class of coverage techniques measures the application's compatibility range across different platforms, browsers, and operating systems.
This technique revolves around the user's perspective. It involves test cases that examine every possible entry-exit outcome of the product.
It incorporates the analysis of all the inherent risks in the product. Measures like risk enlistment, likelihood, and threat are covered through this technique.
The requirement coverage technique focuses on the apps product's essential aspect— meeting the requirements.