Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: An yi rajistar "Six Sigma" a ranar 11 ga Yuni, 1991 a matsayin Alamar Sabis na Amurka 1,647,704. A shekara ta 2005 Motorola ta ba da fiye da dala biliyan 17 a cikin tanadi zuwa Sigma shida. Sauran masu amfani da Sigma shida sun haɗa da Honeywell da General Electric, inda Jack Welch ya gabatar da hanyar. A ƙarshen shekarun 1990, kusan kashi biyu bisa uku na ƙungiyoyin Fortune 500 sun fara ayyukan Sigma shida tare da manufar rage farashi da haɓaka inganci. A cikin 'yan shekarun nan, wasu masu aikatawa sun haɗu da ra'ayoyin Sigma shida tare da ƙarancin masana'antu don ƙirƙirar hanyar da ake kira Lean Six Sigma. Hanyar Lean Six Sigma tana kallon ƙarancin masana'antu, wanda ke magance tsarin tafiyar matakai da batutuwan lalacewa, da Six Sigma, tare da mai da hankali kan bambancin da ƙira, a matsayin fannoni masu dacewa da nufin haɓaka "kasuwanci da ƙwarewar aiki".A cikin 2011, Kungiyar Ƙasa ta Duniya (ISO) ta buga ƙa'idar farko "ISO 13053:2011" wanda ke bayyana tsarin Six Sigma. Sauran ka'idoji an ƙirƙira su galibi ta jami'o'i ko kamfanoni waɗanda ke da shirye-shiryen takaddun shaida na farko don Six Sigma.  Tambaya: Yaya yawan tanadi aka danganta ga shida Sigma?
Biliyan 17