Crosby saw statistical quality control and the MIL-Q-9858 standard as contributing to this through acceptable quality levels—a concept that allows a certain number of acceptable defects and reinforces the attitude that mistakes are inevitable.
kɹˈɑːsbi sˈɔː stɐtˈɪstɪkəl kwˈɔlᵻɾi kəntɹˈoʊl ænd ðɪ ˌɛmˌaɪˈɛlkjˈuː nˈaɪn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti ˈeɪt stˈændɚd æz kəntɹˈɪbjuːɾɪŋ tə ðɪs θɹuː ɐksˈɛptəbəl kwˈɔlᵻɾi lˈɛvəlz—ɐ kˈɑːnsɛpt ðæt ɐlˈaʊz ɐ sˈɜːʔn̩ nˈʌmbɚɹ ʌv ɐksˈɛptəbəl dˈiːfɛkts ænd ɹˌiːɪnfˈoːɹsᵻz ðɪ ˈæɾɪtˌuːd ðæt mɪstˈeɪks ɑːɹ ɪnˈɛvᵻɾəbəl.