More precisely, there's a very strong power-law re testing; therefore the frequency of testing is also very important. You don't want to test just to create QC-

More precisely, there's a very strong power-law re testing; therefore the frequency of testing is also very important. You don't want to test just to create QC-Theatre, that's just narcissism. But most of us err on the side of laziness. The empirical data doesn't say Agile works, it says frequent testing works.