Precisely Wrong: Why Conventional Planning Systems Fail

by Carol Ptak, Chad Smith

Overview

At the heart of most supply chains lies a planning tool called Material Requirements Planning (MRP). Invented in the 1950s, codifed in the 1960s and commercialized in the 1970s, MRP became THE way of life for supply order generation and synchronization throughout the world. Yet the people that interact with MRP everyday know that something is very wrong. They may not be able to explain exactly why, but they know that if they did exactly what MRP told them to do, it would have disastrous consequences for their company and their career.  

What if there was one fatal flaw in MRP that makes it distort the relevant information that planners, companies, and supply chains are desperately seeking? What if correcting this one fatal flaw would allow the promise of MRP to be attained and the bullwhip to be effectively mitigated? Precisely Wrong: Why Conventional Planning Fails and How to Fix It will expose this fatal flaw and trace its impact to everyday situations encountered by planners and buyers and the larger supply chain.

Additionally, an elegant solution to overcome this flaw will be revealed. Readers will walk away with a new depth of understanding about conventional planning systems and a list of things they can begin to implement the very next day.  This work goes beyond the planning mechanisms of an organization and shows a roadmap for all levels to drive adaptation, protect and promote the flow of relevant information, and survive and thrive in the today’s complex and volatile environment.

Features

• Provides an unique and simple view of the core problem underlying these systems, enabling a company to see a clear and relevant planning picture.
• Gives companies an essential description of the most known and pervasive issue in supply chain called the “bullwhip  effect”, and how it relates to the core problem.

Primary: Anyone involved in planning activities in manufacturing and supply chain entities; software-compliant member companies of DDI(9 so far); Organizations such as APICS, ISM, etc.
Secondary: Undergraduate and graduate students of supply chain management courses.

For more information, videos, and more, visit the official

Precisely Wrong website at www.preciselywrong.com.

Product Details

ISBN-13:	9780831136185
Publisher:	Industrial Press, Inc.
Publication date:	11/28/2017
Edition description:	First Edition
Pages:	336
Product dimensions:	6.00(w) x 9.00(h) x 0.75(d)
Age Range:	18 Years

About the Author

Carol Ptak, CFPIM, CIRM, DDPP, DDLP, ASTP, is a Co-Founder and Partner at the Demand Driven Institute. Ms. Ptak is a past president of APICS and has authored several books on MRP, ERP, Lean, and Theory of Constraints.

Chad Smith, DDPP, DDLP, ASTP,  is a Co-Founder and Partner at the Demand Driven Institute. Prior to the Demand Drive Institute Mr. Smith served as the Managing Partner of Constraints Management Group (CMG) for eighteen years. Mr. Smith has co-authored and contributed to several books on MRP, Theory of Constraints, and the Demand Driven methodology.

Table of Contents

Part 1: The Current Planning Challenge

• The Objective and History of Planning
• How Conventional Planning Works
• The Core Problem of the Bullwhip

Part 2: A New Direction

• The Power of Decoupling
• Demand Driven MRP
• The Quest For More Relevant Information
• The Demand Driven Adaptive Enterprise Model 

Appendixes

• Simulating DDMRP Performance Against Lean and MRP II
• An Inquiry into Queue Dynamics and Lead Times in Supply Chains
• Why the Demand Driven Adaptive Enterprise Model Is Disruptive
• Demand Driven Answers for Accountants
• The Story Behind Demand Driven Material Requirements Planning

Interviews

Primary: Anyone involved in planning activities in manufacturing and supply chain entities; software-compliant member companies of DDI(9 so far); Organizations such as APICS, ISM, etc.
Secondary: Undergraduate and graduate students of supply chain management courses.