Measure calls and escapes with a defined denominatorConfusion matrix: true positives, false positives, false negatives and true negatives. Only independently labelled inspection opportunities support all four counts.Measure calls and escapes with a defined denominatorTRUE CALLDefect called; independently confirmedFALSE CALLAcceptable feature called for reviewESCAPEDefect not called; found independentlyTRUE NEGATIVEAcceptable feature not called³Ô¹Ïtv · Engineering illustration · Not an inspection record