It is one of the Agile methodologies. The method is based on the concept of lean production, based on the desire to eliminate all losses - temporary, production, logistics, quality.
A feature of Kanban is that tasks must be completed on time, the load between the team is distributed evenly.
In practice, it looks like this. Each project task is described in a separate card and added to the board - virtual or real. The card and board are essential elements of Kanban. All tasks that need to be done are collected in a special column, conditionally, it can be called “to do” / “to do”. The executor selects a task and moves it to the “in progress” / “in progress” column. When a task is done, it goes into the corresponding "done" / "done" column. In practice, there may be many more columns than three. For example, columns on a board might look like this: “discussed” (backlog), “agreed” (ready), “encoded” (coding), “tested” (testing), “confirmed” (approval) and “done” (done ).
There are many tools for building a Kanban team. You can read about some of them in the article “Tools for Teamwork on a Startup”.
Case "Toyota". The Kanban methodology was born in manufacturing at Toyota. Site masters listed the work to be done on paper and posted it in a conspicuous place - and the kanban board, one of the elements of the methodology, was born. At the heart of Toyota production is an annual plan for the production and sale of cars, on the basis of which monthly and operational plans for the average daily output at each site are drawn up, based on forecasting consumer demand. The methodology is based on the “just in time” principle, which, in addition to strict adherence to the timing for each task, makes it possible to reveal production defects on time. For example, daily inventory control of products and parts reveals faults or downtime.