Use this sub-grid to visually organize the set of tests that would fit into a single table cell in the main test grid. This level of detail helps to visualize whether all possible situations are covered. I.e., are all relevant classes of input values covered? and are all relevant system states covered?
This test suite visualization is useful for understanding how well specific features are being covered by the system test suite in this release. It is not uncommon to focus testing effort on the highest priority features, or the most risky features, first.
This visualization helps show which use cases are being covered by the system test suite. It is not unusual to focus on testing high priority use cases first.