What is a distinctive feature of the Single-Card Kanban System?

The Single-Card Kanban System is characterized by the use of a single authorization method that governs the handling of materials within a production process. This system simplifies the management of inventory and production signals by relying on a single card to indicate when new materials must be ordered or when production should take place. This reduces complexity and fosters clearer communication throughout the supply chain.

In this context, the single card serves as both a request and an authorization mechanism, ensuring that only necessary materials are triggered for replenishment or production based on actual demand. This focus helps to reduce waste and increase efficiency, aligning with the lean manufacturing principles that Kanban systems are built upon.

While other options address different aspects of inventory management, the essence of the Single-Card Kanban System lies in its streamlined approach through a singular authorization method, which differentiates it from more complex systems that may require multiple signals or elaborate tracking and management processes.