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The kanban card is, in effect, a message that signals a depletion of product, parts, or inventory. When received, the kanban triggers replenishment of that product, part, or inventory. Consumption, therefore, drives demand for more production, and the kanban card signals demand for more product—so kanban cards help create a demand-driven system.
CONWIP is a kind of single-stage kanban system and is also a hybrid push-pull system. While kanban systems maintain tighter control of system WIP through the individual cards at each workstation, CONWIP systems are easier to implement and adjust, since only one set of system cards is used to manage system WIP. [2] CONWIP uses cards to control ...
The underlying kanban method originated in lean manufacturing, [1] which was inspired by the Toyota Production System. [2] It has its origin in the late 1940s when the Toyota automotive company implemented a production system called just-in-time, which had the objective of producing according to customer demand and identifying possible material ...
Kanban cards are a key component of a kanban system as they signal the need to move materials within a production facility or to move materials from an outside supplier into the production facility. The kanban card is, in effect, a message which signals depletion of product, parts, or inventory. When received, the kanban triggers replenishment ...
Coloured cards representing individual jobs (referred to as kanban cards) are placed on the heijunka box to provide a visual representation of the upcoming production runs. The heijunka box makes it easy to see what type of jobs are queued for production and for when they are scheduled.
Production Kanban is designed for a replenishment quantity that may be smaller than a lot size or batch. It is based on a "dual card Kanban" system where a "move" card or container represents the quantity required by the downstream point of consumption and a "produce" card is kept on a display board and accumulates to a replenishment batch.
The two-card kanban procedure differs a bit: The downstream operator takes the production kanban from his list; If required parts are available he removes the move kanban and places them in another box, otherwise he chooses another production card; He produces the part and attach its respective production kanban
Whereas practitioners of lean manufacturing can apply visual management systems such as the kanban cards used in the Toyota Production System, practitioners of Lean IT must use enterprise IT management tools to help visualize and analyze the more abstract context of IT value streams. [33]
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