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Foreword

It has pleased me to have the opportunity to write the Foreword for this book. I have been fortunate to work with many outstanding people over the last 50 years. I would consider Carol and Chad to be right at the top of that group. What they have contributed to the field of supply chain management with demand driven material requirements planning (DDMRP) is probably the most significant improvement in the field in decades. MRP was made possible in the ’60s because of the power of the computer. DDMRP is now possible because of the power of the innovation that Carol and Chad have introduced. Carol and Chad are truly “thought leaders”

Having helped companies implement MRP and taught thousands of people about master scheduling, I have known for a long time that there were issues with the traditional planning systems. People have had to perform too many work-arounds utilizing spreadsheets to obtain reasonable results. Carol and Chad have found the solution to this problem and explain it extremely well in this book.

This is an important piece of work. We need to understand why the approaches that we believed in for so long were flawed. Be prepared to be amazed by the explanations in this book. I love the title that they have chosen for this book, Precisely Wrong. It says it all.

They have not stopped with just the development of DDMRP. The concepts that they have incorporated in the demand driven adaptive enterprise (DDAE) will become the standard for companies to strive to achieve.

Richard (Dick) Ling