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	SMED	Manutenzione Produttiva Totale
Campo	Gestione delle operazioni	Gestione delle operazioni
Famiglia	Machine learning	Machine learning
Anno di origine	1985	1988
Ideatore	Shigeo Shingo	Seiichi Nakajima
Tipo	Setup time reduction technique	Maintenance and productivity system
Fonte seminale	Shingo, S. (1985). A revolution in manufacturing: The SMED system. Cambridge, MA: Productivity Press.	Nakajima, S. (1988). Introduction to TPM: Total Productive Maintenance. Cambridge, MA: Productivity Press.
Alias	quick changeover, rapid setup	TPM
Correlati	5	5
Sintesi	Single Minute Exchange of Die (SMED) is a systematic approach developed by Shigeo Shingo in the 1980s to drastically reduce the time required to changeover equipment from producing one product to another. The methodology, part of the Toyota Production System, aims to reduce setup time to a single-digit minute range (ideally under nine minutes), enabling smaller batch sizes, faster response to customer demand, and improved flexibility in manufacturing. SMED is a cornerstone of lean manufacturing and just-in-time production.	Total Productive Maintenance (TPM) is a comprehensive maintenance management approach developed by Seiichi Nakajima in the late 1980s that emphasizes employee involvement, preventive maintenance, and continuous improvement to maximize equipment effectiveness. Unlike traditional reactive maintenance, TPM integrates maintenance activities across all organizational levels—from operators to executives—and focuses on eliminating losses (downtime, defects, speed losses) to achieve sustained production efficiency, quality, and safety.