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Kanban (Japanese: 看板 meaning signboard) is a scheduling system for lean manufacturing (also called just-in-time manufacturing, abbreviated JIT). [2] Taiichi Ohno, an industrial engineer at Toyota, developed kanban to improve manufacturing efficiency. [3] The system takes its name from the cards that track production within a factory.
The diagram here shows a software development workflow on a kanban board. [4]Kanban boards, designed for the context in which they are used, vary considerably and may show work item types ("features" and "user stories" here), columns delineating workflow activities, explicit policies, and swimlanes (rows crossing several columns, used for grouping user stories by feature here).
A kanban board in software development. Kanban can be used to organize many areas of an organization and can be designed accordingly. The simplest kanban board consists of three columns: "to-do", "doing" and "done", [3] though some additional detail such as WiP limits is needed to fully support the Kanban Method. [4]
The kanban card is, in effect, a message which signals 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 more product — so kanban cards help create a demand-driven system.
Trello is a web-based, kanban-style, list-making application developed by Atlassian. Created in 2011 by Fog Creek Software , [ 5 ] it was spun out to form the basis of a separate company in New York City in 2014 [ 6 ] [ 7 ] [ 8 ] and sold to Atlassian in January 2017.
Kanboard is a project management open source software application that uses a Kanban board to implement the Kanban process management system. Features [2] include a minimal drag-and-drop web user interface, a command line interface [3] and ability to automate repetitive tasks.
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]
A burn down chart tracks work remaining over time while burn up charts like the CFD track the growth (or shrinkage) of work in certain states over time. In agile software development, when teams use kanban methodology, the cumulative flow diagram shows the number of active items in each column on a kanban board.