kanbansystem

KanbanSystem is a visual workflow management method designed to optimize the flow of work by mapping tasks on a Kanban board, limiting work in progress (WIP), and using a pull-based process. It originated in manufacturing as part of the Toyota Production System and was adapted for knowledge work and software development in the early 2000s. The term kanban means signboard in Japanese.

A typical Kanban System uses a board divided into columns representing stages of the workflow, such as Backlog, Ready, In Progress, Testing, and Done. Work items are represented by cards that move left to right as they progress. Teams pull new work when capacity is available, rather than pushing tasks onto workers. WIP limits prevent overloading a stage and help reveal bottlenecks.

Core principles include visualizing work, limiting WIP, managing flow, making process policies explicit, implementing feedback loops, and pursuing continuous improvement. Common components are the board, cards, WIP limits, a backlog, and explicit policies. Regular cadences such as daily stand-ups, replenishment meetings, reviews, and retrospectives support coordination and improvement. Metrics such as lead time, cycle time, throughput, and cumulative flow diagrams are used to evaluate performance and guide improvement.

Kanban System is used across software development, IT operations, manufacturing, and services. Variants include Personal Kanban for individuals and Portfolio Kanban for larger scopes. While Kanban can improve predictability and throughput, success depends on organizational culture and discipline in maintaining WIP limits, and is often complemented by Lean or Agile practices.