مقایسهٔ روش‌ها

	SMED	کانبان
حوزه	مدیریت عملیات	مدیریت عملیات
خانواده	Machine learning	Machine learning
سال پیدایش	1985	1950
پدیدآور	Shigeo Shingo	Taiichi Ohno
نوع	Setup time reduction technique	Production control system
منبع بنیادین	Shingo, S. (1985). A revolution in manufacturing: The SMED system. Cambridge, MA: Productivity Press.	Ohno, T. (1988). Toyota production system: Beyond large-scale production. Cambridge, MA: Productivity Press.
نام‌های دیگر	quick changeover, rapid setup	visual management, pull system
مرتبط	5	5
خلاصه	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.	Kanban is a pull-based production control system developed by Taiichi Ohno at Toyota in the 1950s that uses visual signals (traditionally cards or bins) to trigger production and movement of materials based on actual demand rather than forecasts. The Japanese word 'kanban' means 'visual card' or 'sign,' and the system operates on the principle that work should flow in response to downstream requirements. Kanban is a foundational element of the Toyota Production System and lean manufacturing, enabling just-in-time production, reduced inventory, and improved flow efficiency.