According to https://kanbantool.com/kanban-guide/water-spider https://kanbantool.com/kanban-guide/water-spider: > A water spider is a Lean production personnel

According to https://kanbantool.com/kanban-guide/water-spider https://kanbantool.com/kanban-guide/water-spider: > A water spider is a Lean production personnel role centered around timely and accurate stock replenishment. The water spider team member is similar to a mobile Kanban system that refills the production line with the required materials to maintain a steady flow.