To test some safety-critical software, don't ALL my test cases need to pass ?

';1.11 The world is determined by the facts, and by their being all the facts.'; Wittgenstein, Tractatus











Source : years of experienceTo test some safety-critical software, don't ALL my test cases need to pass ?
There is no 100%


Your fail safe systems, need to pass.


Pass it to the next, fail safe.To test some safety-critical software, don't ALL my test cases need to pass ?
Not necessarily. Do only the safety-critical tests on your software.