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Kanban Nidan (二段) Grade 2 Certification Exam Study Guide
This study guide prepares learners for the Kanban Nidan Grade 2 certification by covering core Lean methodologies, including the three forms of waste, the six Kanban rules, and two-card system mechanics. Through practical bakery-based applications and technical formulas, students will master inventory control, Heijunka leveling, and continuous improvement strategies.
MODULE 1 — New Module
Muda, Mura, and Muri are the three forms of waste in Lean methodology. Muda refers to unnecessary activities that do not add value, while Mura represents inconsistency in operations, and Muri stands for overburdening processes or workers.
The Six Rules of Kanban are critical in ensuring efficient production flow. They focus on defect prevention, precise pull signals for inventory, and producing exact quantities to minimize waste and optimize operations.
In a Two-Card System, Production Kanban authorizes the production of a specific quantity, while Withdrawal Kanban signals the withdrawal of items from the buffer. This system enhances visibility and control over inventory flow.
Visual flow is essential in a bakery production system, allowing teams to easily identify bottlenecks and streamline processes through effective use of space, layout, and signaling.
Calculating Kanban quantities involves understanding demand rates and lead time. The Basic Kanban Formula helps determine the number of Kanban cards required to maintain optimal stock levels.
Practical bakery examples play a crucial role in applying theoretical concepts. They illustrate how Kanban principles can be implemented in real-life scenarios to resolve issues and enhance efficiency.
Heijunka leveling is aimed at reducing Mura by evenly distributing production levels over time, allowing for constant and predictable production that minimizes fluctuations and stress on resources.
Kaizen strategies are vital for continuous improvement. By engaging in regular reviews and process enhancements, teams can reduce the number of Kanban cards required and streamline operations.
| Concept | Formula | Purpose |
|---|---|---|
| Basic Kanban Formula | (Average Daily Demand × Lead Time) + Safety Stock | To calculate the appropriate number of Kanban cards needed in a system. |
| Kanban Card Calculation | (Daily Usage × Lead Time) / Container Size | To determine how many Kanban cards are necessary based on usage and container size. |
Test your knowledge with these 10 practice questions. Select your answers and submit to see your score.
Decorating every croissant with expensive toppings when most customers prefer them plain is an example of which type of Muda in the bakery?
How does Heijunka (production leveling) address the problem of Mura in a Traditional Kanban bakery setting?
Moving dough trays across the kitchen multiple times due to poor layout between mixing and proofing stations is an example of which type of Muda?
In the bakery Heijunka example, what is built during quieter periods to absorb weekend peaks without causing chaos?
According to the manual, which of the following correctly describe how Jidoka contributes to waste reduction in a Traditional Kanban environment? (Select ALL that apply)
In a Traditional Kanban bakery environment, which of the following scenarios correctly illustrate examples of Muda (waste)? (Select ALL that apply)
How does Mura negatively affect the Traditional Kanban pull system?
Why is reducing Muda typically the first major focus in any Traditional Kanban implementation?
In the bakery's Heijunka implementation, what batch size approach replaces large, infrequent production runs?
In Traditional Kanban, when does WIP Limits contributing to Muri typically appear?