Just-In-Time (JIT)

8 Definitions

Defined as ‘giving the customer what they want, when they need it, with the required Quality, whilst using the minimum amount of resources (labour, space, equipment and WIP i.e. lowest cost)
defined by Lean Kaizen
A system for producing and delivering the right items at the right time in the right amounts. Just-in-Time approaches just-on-time when upstream activities occur minutes or seconds before down-stream activities, so single-piece flow is possible.
defined by Beyond Lean
A manufacturing and inventory management philosophy that seeks to effectively manage resources and improve organizational effectiveness by identifying and eliminating sources of waste (anything that does not add to the customer's perception of value). Among other areas, it focuses on the reduction of lead times, small lot sizes, flexible production facilities and workforces, elimination of quality defects, and the reduction of inventory levels to as close to zero as possible. Inventory is seen in the JIT philosophy as not necessarily an asset, but as an unnecessary cost and potential liability that lengthens lead times, increases the chance for obsolescence and hides inefficient processes and systems. It also emphasizes group and partner involvement in design, manufacturing and logistics.
defined by Lean Affiliates
Just In Time means "to produce the necessary units in the necessary quantity at the necessary time". JIT refers to single-piece flow pulled by the customer. JIT is managed by Kanban visual control flow. Autonomation prevents defective parts from moving down the production line. JIT is sometimes used as a synonym for the Toyota Production System, but is one of the pillars of TPS. Application of JIT reduces inventory to the minimum, and all parts in progress can be related to individual products.
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.
Producing or conveying only the items that are needed by the next process when they are needed and in the quantity needed.
A policy calling for the delivery of material, products or services at the time they are needed in an activity or process to reduce inventory, wait time and spoilage
defined by 6SixSigSigma
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.