Problem Solving › Operations
Il turno di notte produce il 30% di difetti in più · Operations · Advanced
Four months of quality data are clear: the night shift generates 30% more defects than the other two, on identical machines and identical products. The night shift supervisor, one of the most senior, rejects the numbers: he blames untuned machines and the materials day shifts pass him. Night operators are the least experienced because everyone asks to move to days as soon as possible, and the shift premium no longer compensates. The main client has just traced two non-conformities to night lots. How do you intervene?
I dati qualità degli ultimi quattro mesi sono chiari: il turno di notte genera il 30% di difetti in più degli altri due, su macchine identiche e prodotti identici. Il capoturno di notte, uno dei più anziani, respinge i numeri: colpa delle macchine non tarate e dei materiali che gli girano i turni di giorno. Gli operatori notturni sono i meno esperti perché tutti chiedono di passare al giorno appena possibile, e il premio di turno non compensa più. Il cliente principale ha appena tracciato due non conformità a lotti notturni. Come intervieni?
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