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   Earlier books by Chris Gray 
Chris Gray is President of Gray Research and a Senior Partner with Partners for Excellence, Inc.

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S&OP Resources


On-site S&OP Education

S&OP Instructor's Manual

S&OP Software

S&OP Consulting


Education Courses
On-site Workshops/Classes


Education Materials

S&OP Instructor's Manual
MPS Instructor's Manual


Consulting and Research
Class A Certification
Performance Assessment
Software Evaluation and Selection

MRP II Standard System Definition
Software Supplier Directory (140K)


eSOP - S&OP Software



Recommended Books
Sales and Operations Planning - Best Practices
by John Dougherty and Chris Gray

The Right Choice by Chris Gray

The MRP II Standard System by Chris Gray and Darryl Landvater

Sales and Operations Planning Handbook by Don Rice and John Civerolo



Job Search and Resume Help




Master It (Master Scheduling and Lean Production)


Staying in Business with e-Business


Time to Get Serious About e-Commerce


Does Your Supply Chain Measure Up? 


The Party's Over - The Real Aftermath of Y2K 


Back to Basics


Software and Simplicity


Turning Education Expense into an Investment that Pays Off!


ERP Software: Valuable Tips for Selection and Implementation


Coca-Cola: "Always" Class A 

When The MPS Is MIA ...

Can Lean And Software Co-exist?  

Sales and Operations Planning and Lean Manufacturing

On Education and Training





Associates and Related Companies
Worldwide Excellence Partners
Partners for Excellence
Graham Barton (New Zealand)

Bill Belt Excellence (French language)


Who We Are
Chris Gray Biography
Books by Chris Gray

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MRP II Standard System, A Handbook for Manufacturing Software Survival, by Christopher D. Gray and Darryl V. Landvater, 1989.  John Wiley and Sons, Publishers. 

Software has the potential to cause the greatest delay in implementing MRP II. The MRP II Standard System solves two problems with software:

1. Understanding how the normal functions of MRP II work.

2.Evaluating software functionality, regardless of whether the software is new or an existing homegrown system.

The Standard System helps take the mystery out of manufacturing software and offers a logical step-by-step explanation of required system functions. It details the logic of MRP, sales and operations planning, master production scheduling, demand management, the bill of material, inventory and scheduled receipts subsystems, plant scheduling and dispatching, capacity requirements planning. purchasing, DRP, financial planning interfaces, simulation, and performance measurements.

This recognized industry standard has been used by hundreds of manufacturers to solve their software problems. The accompanying workbook guides you through the points in the MRP II Standard System to help you evaluate step-by-step the modifications necessary to make MRP II work in your company.  

Click here for a summary checklist of functions covered by the MRP II Standard System.  


MRP II Standard System Workbook by Christopher D. Gray and Darryl V. Landvater, 1989.  John Wiley and Sons, Publishers. 

Companion to the MRP II Standard System


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