Modern software systems rely on complex decision-making logic that demands precise validation. MC/DC coverage (Modified Condition/Decision Coverage) ensures that every condition in a decision has been independently tested, making it one of the most rigorous testing criteria used in safety-critical domains like aviation, healthcare, and automotive systems.

By analyzing how each logical condition affects decision outcomes, MC/DC coverage helps uncover hidden dependencies that simpler metrics like branch or statement coverage often miss. This leads to more reliable and predictable software behavior.

For developers and QA engineers, adopting MC/DC coverage means going beyond surface-level testing—it’s about building confidence in the logic that drives your application’s core functionality.