What is Kanban?

Kanban is a visual method for managing work as it flows through a process. Tasks appear as cards on a board whose columns mirror each stage of the workflow, from request to done. By limiting how much work is in progress and pulling new items only as capacity frees up, Kanban improves flow and exposes bottlenecks.

How Kanban works

Kanban originated at Toyota in the late 1940s, where Taiichi Ohno developed it as part of the Toyota Production System. The word combines kan (visual or sign) and ban (board or card). On the factory floor, a physical kanban card signaled when a station needed more parts, triggering replenishment only when stock was actually consumed. This is the essence of a pull system: work and materials move in response to real demand rather than a forecast.

The same idea now drives knowledge work and software teams. A Kanban board makes every task visible as a card that moves left to right across columns such as To Do, In Progress, and Done. The board reflects the real state of work at a glance, so the whole team shares one source of truth about what is happening and where things are stuck.

Core practices of Kanban

Kanban rests on a few foundational practices:

  • Visualize the workflow. Map every stage a work item passes through and represent each item as a card on the board.
  • Limit work in progress (WIP). Cap the number of items allowed in each stage. WIP limits stop teams from starting more than they can finish and force bottlenecks into the open.
  • Manage flow. Watch how work moves through the system and smooth out the points where it slows or piles up.
  • Make policies explicit. Define clear rules for when a card can move from one column to the next.
  • Improve continuously. Use metrics such as lead time and cycle time to steadily refine the process.

Benefits of Kanban

  • Faster, more predictable delivery as WIP limits shorten lead time and reduce multitasking.
  • Visible bottlenecks, because work piling up in a column signals exactly where flow breaks down.
  • Reduced waste, since a pull system builds or starts work only when it is genuinely needed, cutting overproduction and excess inventory.
  • Gradual adoption, because Kanban layers onto an existing process without demanding fixed roles or sprints.

Common pitfalls

  • Ignoring WIP limits. Without enforced caps, the board becomes a to-do list and the flow benefits disappear.
  • Overloading columns. Too many cards in progress hide bottlenecks instead of revealing them.
  • Vague policies. If the rules for moving a card are unclear, items stall in ambiguous states.
  • Treating the board as static. Kanban is a continuous-improvement tool; a board no one reviews stops driving change.

Kanban and lean

Kanban is one of the pillars of lean manufacturing and just-in-time production. Its pull-based signaling directly supports the lean goal of eliminating waste, and it pairs naturally with practices like kaizen and pacing work to takt time. Whether on a shop floor or a service team, the aim is the same: match output to real demand and keep work moving smoothly.

How VSight helps

A Kanban system only works when each step and its status are truly visible and standardized. VSight Workflow provides digital task and workflow management, delivering work instructions, SOPs, and checklists that guide every stage through a repeatable sequence and make the status of each task clear. When a card stalls because of an equipment problem or an unfamiliar task, VSight’s AR remote assistance puts a live expert on the technician’s camera view with on-screen AR annotation, so blockers get diagnosed and cleared faster instead of holding up the whole flow. VSight is a connected worker platform, and is GDPR, HIPAA, and ISO 27001 certified.

Request a demo to see how standardized, visible work helps your teams keep tasks flowing.

Related terms: lean manufacturing, kaizen, takt time.

Frequently asked questions

What does Kanban mean? Kanban is a Japanese term that combines kan (visual or sign) and ban (board or card). It refers to a visual signaling system that manages the flow of work or materials by making status and demand visible on a board.

What is the difference between Kanban and Scrum? Scrum organizes work into fixed-length sprints with set roles and ceremonies, while Kanban is a continuous-flow method with no required time boxes. Kanban limits work in progress and pulls new items as capacity frees up, so teams can adopt it gradually on top of an existing process.

What are work-in-progress (WIP) limits in Kanban? WIP limits cap how many items can be in a given stage at once. By preventing teams from starting more than they can finish, WIP limits expose bottlenecks, shorten lead time, and keep work flowing smoothly instead of piling up.

How does VSight help teams apply Kanban principles? VSight Workflow provides digital task and workflow management with work instructions, SOPs, and checklists that make each step and its status visible in a repeatable sequence. When a task stalls, VSight’s AR remote assistance puts a live expert on the technician’s camera view with on-screen annotation so blockers get cleared faster.