A cikin 2005 Motorola ya danganta fiye da US $ 17 biliyan a tanadi zuwa shida Sigma.Sauran farkon masu amfani da shida Sigma sun haɗa da Honeywell da General Electric, inda Jack Welch ya gabatar da hanyar.A ƙarshen shekarun 1990, kusan kashi biyu bisa uku na Fortune 500 ƙungiyoyi sun fara ayyukan shida Sigma tare da manufar rage farashin da inganta inganci.A cikin 'yan shekarun nan, wasu masu aikatawa sun haɗu da ra'ayoyin shida Sigma tare da ƙirar masana'antu don ƙirƙirar hanyar da ake kira Lean Six Sigma. Hanyar Lean Six Sigma tana kallon masana'antu, wanda ke magance al'amuran tsari da ɓarnar abubuwa, da kuma Six Sigma, tare da mai da hankali kan bambancin da zane, a matsayin horo na gaba ɗaya da nufin haɓaka ƙwarewar kasuwanci da aiki.
Biliyan 17