What it bust rate: A measure of the number of tests that broke, failed to properly capture data, interfered with an existing site element, or in some other way created a problem that prevented the test from continuing.
What bust rate is not: A test result. Bust rate is a measure of effectiveness and efficiency and is used to determine the overall health of a testing program.
Why bust rate matters: As an essential metric for monitoring program quality, a high number of busts is an indication there are gaps in the quality assurance process—and the testing process in general.
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