J (Lean Glossary)

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Jidoka: (Autonomation, machine with a human touch) a device that stops a machine whenever a defective product is produced. Automation is expensive while Autonomation is a very cost effective improvement.

JIS: Just in Sequence: Manufacturing products as per sequence decided over short time period. Same sequence is also informed well in advance to 1st tier suppliers, so that suppliers can supply their goods in time with minimum lead time.

Judgment Inspection: An error proofing method in which a quality inspector or operator compares the final product or part with a standard. It is an end-of-the-line inspection.

Just-In-Time Inventory: A method of inventory management in which small shipments of stock are delivered as soon as they are needed. JIT minimizes stocking levels.

Just-in-Time (JIT): Principles that are fundamental to Time-Based Competition waste elimination, process simplification, set-up and batch-size reduction, parallel processing, and layout redesign are critical skills in every facet of the lean organization. JIT is a system for producing and delivering the right items at the right time, in the right amounts. The key elements of Just-in-Time are Flow, Pull, Standard Work, and Takt Time.

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