Card-Based Control Systems for a Lean Work Design: The Fundamentals of Kanban, ConWIP, POLCA, and COBACABANA, 1st Edition (Paperback) book cover

Card-Based Control Systems for a Lean Work Design

The Fundamentals of Kanban, ConWIP, POLCA, and COBACABANA, 1st Edition

By Matthias Thurer, Mark Stevenson, Charles Protzman

Productivity Press

193 pages | 83 B/W Illus.

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Description

Many shops have simplified their production control by using card-based systems such as kanban and Constant Work-in-Process (ConWIP). Although these systems provide a simple and highly effective visual approach for controlling manufacturing and service operations, all too many shops struggle with failed implementations or achieve results that fall below expectations. These outcomes can be attributed to a poor fit between the actual control problem and the solution applied.

This book takes a different approach to most other books on the subject—as it starts with an introduction to the control problem, instead of the control solution. Card-Based Control Systems for a Lean Work Design outlines how the problems encountered in typical manufacturing shops and service providers can be characterized, which allows for improved problem diagnosis.

The first four chapters of the book lay the foundations for problem diagnosis. The next three chapters then discuss, in sequence, each of the three "traditional" card-based control systems: kanban, ConWIP, and Paired-cell Overlapping Loops of Cards with Authorization (POLCA). The book explains how each of these card-based control systems works and identifies the specific type of control problem to which each system applies.

The next two chapters focus on Control of Balance by Card-Based Navigation (COBACABANA), a system developed for high-variety shops producing made-to-order, customized products. This is the first book to discuss this novel approach, which includes the use of cards to estimate due dates or delivery time allowances.

The book closes with a framework that provides guidance on which system to apply. This framework contrasts the control problem with the control solution. The potential of combining card-based systems is also discussed to create a nested solution.

Reviews

I know that the depth of theoretical and practical experience among the authors by Matthias Thurer, Mark Stevenson, Charles Protzman over a broad range of industries gives them extraordinary insight into the practical implementation side of "getting Lean" - The sum of this extensive learning is reflected in this new book; Card-Based Control Systems for a Lean Work Design: The Fundamentals of Kanban, ConWIP, POLCA, and COBACABANA. The reader will find that theauthors share critical information to develop and implement a successful shop floor control system for their organization. Anyone reading this book, whether they are just getting started or have many Lean implementations under their belt, will discover a wealth of thought provoking new material.

Victor Chance, Former VP Supply Chain Procurement & External Operations, Johnson and Johnson Medical Devices and Diagnostics Sector

Table of Contents

Basic Concepts

Highlights

What Is a Production/Service System?

What Is a Business Operation/Process?

What Does a Card-Based Control System Actually Control?

Why Use a Card-Based Control System Rather than the Latest Technology?

Summary: What Card-Based Control Systems Do (And What They Do Not Do) 20

Highlights Revisited

Basic Principles Underpinning a Card-Based Control System

Highlights

Input/Output Control

Visualizing the Stability of the Shop Floor/Station: The Throughput Diagram

Summary: Input/Output Control Underpinning Card-Based Control

Highlights Revisited

Simplified Scheduling through Pool Sequencing and a Shop Floor Dispatching Rule

Highlights

Some Rules for Priority Dispatching on the Shop Floor

Visualizing On-Time Performance: The Order Progress Diagram

Summary: Simplified Scheduling through Priority Dispatching

Highlights Revisited

How to Diagnose a Control Problem?

Highlights

Criterion 1: Make/Produce/Assemble/Build/Serve, etc. To-Stock or To-Order

Criterion 2: The Customer Penetration (Inventory/Order Separation) Point

Criterion 3: Routing Characteristics

Criterion 4: Variability and Uncertainty in Resource Requirements

Summary: Diagnosing the Control Problem

Highlights Revisited

The Inventory Control Problem: Kanban Systems

Highlights

Kanban for the Internal Supply Chain: The Six Rules of Kanban Systems

Work-in-Process Kanban vs. Production Kanban

Kanban for Shop Floor Control

Applicability of Kanban Systems

Summary: Kanban Systems

Highlights Revisited

The Low Variability Order Control Problem: ConWIP

Highlights

ConWIP: How Does It Work?

The Applicability of ConWIP

Summary: ConWIP

Highlights Revisited

Inventory Control Plus Material Requirements Planning for the Order Control Problem: POLCA

Highlights

Paired-Cell Overlapping Loops of Cards with Authorization (POLCA): How Does It Work?

Applicability of POLCA

Summary: POLCA

Highlights Revisited

How to Solve the High Variety Order Control Problem: COBACABANA

Highlights

Control of Balance by Card-Based Navigation (COBACABANA)

COBACABANA: How Does It Work?

Balancing Workloads: The Main Order Release Function of COBACABANA

COBACABANA Recognizes the Difference between Direct and Indirect Work

Simplifying the Need for Processing Time Estimations

COBACABANA and High Processing Time Variability: Starvation Avoidance

Premature Station Idleness and Order Release

Summary: COBACABANA

Highlights Revisited

COBACABANA’s Card-Based System for Delivery Time Estimation Highlights

Card-Based Delivery Time Estimation: How Does It Work?

COBACABANA as a Comprehensive System

Using the Salesperson’s Display for Output Control

Summary: COBACABANA’s Delivery Date Estimation Procedure

Highlights Revisited

Summary: Framework of Applicability

Highlights

Loop Structure and Its Implications for the Application of Card-Based Systems

Card Properties and Their Implications for the Application of Card-Based Systems

The Need for IT Support and Its Implications for the Application of Card-Based Systems

Final Considerations: Nested Card-Based Control Systems

Implementation Information

References

Appendix: Summary of Card-Based Systems

Index

About the Authors

Matthias Thürer is a professor at Jinan University, China. He earned his master’s degree from the Technical University of Berlin and a PhD from the University of Coimbra. He maintains a broad research network regularly visiting universities such as Lancaster University, the University of Clemson, Michigan State University and the University of Groningen. Before getting involved in academia, Matthias worked for several companies and became a master craftsman. Simple control for complex shops is one of Matthias' main research interests. He has published widely on production control systems and is a leading expert on Workload Control and Control of Balance by Card Based Navigation (COBACABANA).

Mark Stevenson is a full Professor at Lancaster University Management School in the UK. He earned a bachelor's and PhD from the Department of Management Science at Lancaster University. Mark's PhD was on Workload Control, the production planning and control concept for low-volume, high-variety shops that underpins COBACABANA. Mark's research has included implementing the Workload Control concept in practice to learn from the implementation process and results. He has published widely in peer-reviewed academic Operations Management journals, including those on production planning and control.

Charles Protzman is an internationally renowned Lean implementer, trainer, and Shingo Prize winning author with over 33 years of experience in Materials and Operations Management. He has consulted with manufacturers, hospitals, government agencies and other service industries. In 1997, Charlie formed Business Improvement Group, LLC, which is located in Baltimore, MD, and specializes in implementing Lean thinking principles and the Lean Business Delivery System - LBDS. Charlie has spent the last 22 years implementing successful Lean product line conversions, kaizen events, and administrative business system improvements (transactional lean) across the U.S. and internationally.

Subject Categories

BISAC Subject Codes/Headings:
BUS053000
BUSINESS & ECONOMICS / Quality Control
BUS097000
BUSINESS & ECONOMICS / Workplace Culture