Matthias Thurer, Mark Stevenson, Charles Protzman
Published February 16, 2016
Reference - 193 Pages - 83 B/W Illustrations
ISBN 9781498746946 - CAT# K27021
Published July 27, 2017
ISBN 9781138437906 - CAT# K37465
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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.
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
Basic Principles Underpinning a Card-Based Control System
Visualizing the Stability of the Shop Floor/Station: The Throughput Diagram
Summary: Input/Output Control Underpinning Card-Based Control
Simplified Scheduling through Pool Sequencing and a Shop Floor Dispatching Rule
Some Rules for Priority Dispatching on the Shop Floor
Visualizing On-Time Performance: The Order Progress Diagram
Summary: Simplified Scheduling through Priority Dispatching
How to Diagnose a Control Problem?
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
The Inventory Control Problem: Kanban Systems
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
The Low Variability Order Control Problem: ConWIP
ConWIP: How Does It Work?
The Applicability of ConWIP
Inventory Control Plus Material Requirements Planning for the Order Control Problem: POLCA
Paired-Cell Overlapping Loops of Cards with Authorization (POLCA): How Does It Work?
Applicability of POLCA
How to Solve the High Variety Order Control Problem: COBACABANA
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
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
Summary: Framework of Applicability
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
Appendix: Summary of Card-Based Systems
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