Lean Manufacturing
A systematic approach to manufacturing derived from the Toyota Production System that focuses on eliminating waste while delivering value to customers. Lean identifies seven types of waste (overproduction, waiting, transport, overprocessing, inventory, motion, and defects) and uses tools like value stream mapping, 5S, and kanban to continuously improve processes.
RELATED TERMS
Kaizen
A Japanese philosophy meaning continuous improvement through small, incremental changes involving all employees from executives to shop floor workers. Kaizen events or blitzes are focused improvement activities where cross-functional teams tackle specific problems over a few days to achieve rapid results.
Kanban
A visual scheduling system developed as part of the Toyota Production System that uses cards or signals to trigger production and material movement based on actual consumption. Kanban implements pull-based manufacturing, where downstream processes request only what they need, reducing overproduction and work-in-progress inventory.
Value Stream Mapping
A lean manufacturing tool that visualizes all steps in the production process from raw materials to customer delivery, identifying both value-adding and non-value-adding activities. Value stream maps help teams see waste, understand material and information flow, and design improved future-state processes.
5S Methodology
A workplace organization method consisting of five Japanese principles: Sort (remove unnecessary items), Set in Order (organize remaining items), Shine (clean the workspace), Standardize (establish consistent practices), and Sustain (maintain the improvements). 5S creates an organized, efficient, and safe work environment that supports productivity and quality.
Just-In-Time
A production strategy that aligns raw material orders and delivery with production schedules to minimize inventory holding costs and waste. JIT manufacturing produces goods only when needed, in the quantities needed, reducing storage requirements and improving cash flow.
Continuous Improvement
An ongoing effort to incrementally improve products, processes, and services over time through small, sustainable changes. Continuous improvement is a core principle of lean manufacturing and quality management, engaging all employees in identifying and implementing improvements.
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