This Kanban Board Cards diagram is a graphical representation of a work item. It is an essential component of the kanban method, a work management framework that aids in visualizing work and the limitation of work in progress (WIP) and maximizes efficiency. Each kanban card shows a single work item as it progresses through various stages of completion on a physical or virtual kanban board. You can think of a software development team using sticky notes on a whiteboard to represent their work items to get an idea of what kanban cards are.