About the CDDP Program
The Certified Demand Driven Planner Program was created by a global partnership between the International Supply Chain Education Alliance (ISCEA) and the Demand Driven Institute (DDI). Internationally accredited by the IISB, the purpose of the CDDP Program is to educate operations and supply chain personnel on the methods and applications of Demand Driven Material Requirements Planning (DDMRP).
DDMRP is a formal planning and execution method designed to correct the inadequacies and inappropriate rules of conventional Material Requirements Planning (MRP) given today’s more volatile, complex and service oriented supply and manufacturing scenarios. The method was first fully articulated in the latest edition of Orlicky’s Material Requirements Planning (McGraw-Hill, 2011) that was co-authored by Carol Ptak and Chad Smith.
The CDDP Program is comprised of 10 modules delivered over 16 contact hours and a three hour proctored exam comprised of 125 questions. Upon successful completion of the exam with a score greater than 70 participants receive a CDDP certificate and may place “CDDP” in their professional title.
Best way to train on DDMRP is to bring CDDP program on-site.
If you have 25 or more employees that need training, please email firstname.lastname@example.org for a customized training plan.
We can take care of your training needs at multiple sites, Worldwide!
For more details, please email
Dustin Mattison Interview with Carol Ptak, Chad Smith, and Dr. Watts
CDDP Program Content
Module 2: Demand Driven Material Requirements Planning Introduction
Module 3: Strategic Inventory Positioning
Module 4: Distribution Network Positioning
Module 5: Buffer Profile and Level Determination
Module 6: Dynamic Buffers
Module 7: Demand Driven Planning – Stocked Parts
Module 8: Highly Visible and Collaborative Execution
Module 9: DDMRP and Master Scheduling
Module 10: DDMRP Performance Reporting and Analytics
Program attendees should review Chapters 1-4 and 22-29 and Appendices B & C of Orlicky’s Material Requirements Planning 3/E (Ptak and Smith, McGraw-Hill, 2011).
Program attendees should also review Chapters 1-4, 11 and Appendix A ofDemand Driven Performance – Using Smart Metrics (Smith and Smith, McGraw-Hill, 2013)
Program attendees should review the following white papers:
Lean Finds a Friend in DDMRP
Standing On the Shoulders Of A Giant
New Rules for the 21st Century Supply Chain
Replenishment Buffers vs. Safety Stock
The State of Demand Driven MRP
The Average Question
DDMRP Buffer Explanation and Simulation
Demand Driven MRP and Master Production Scheduling
Each Certified Demand Driven Planner Examination is comprised of 125 multiple choice questions chosen from a larger question pool. Each exam provided is unique in the questions and sequence of the questions. A passing score requires 70% correct answers.
The exam is delivered online through ISCEA’s iProctor system. You must have a computer with good internet connectivity and a webcam to take the online exam.
Exam schedules are posted at: http://cddp-online.eventbrite.com
The examination questions are broken down into 7 categories. Below is a description of those categories.
The first category is about the problem that DDMRP is solving. Included in this category are known issues with conventional MRP and the impact of variability on manufacturing and supply chains.
The second category is about the basics of DDMRP. This category includes the fundamental principles that DDMRP is founded on, it’s typical effects in manufacturing and supply chain environments and key differences it introduces to planning and execution.
The third category is about Strategic Inventory Positioning. This category includes knowing the fundamental factors behind determining decoupling points and the ramifications on the environments when decoupling points are placed.
The fourth category is about Buffer Profiles, Level Setting and Zone Definitions. This category includes what type of parts belongs in what type of buffer profiles, the buffer equations and average inventory position and ranges. Study Resources:
The fifth category is about Dynamic Adjustments to buffers. This category includes both recalculated and planned adjustments (seasonality, product innovations and deletions, etc.). Study Resources:
The sixth category is about the Planning aspects of DDMRP. This category includes the available stock equation, order spike qualification, decoupled explosion and DDMRP impacts to the Master Production Schedule and S&OP Process.
The last category is about the Execution and analytics aspects of DDMRP. This category includes the prioritization of open supply in DDMRP using the various buffer status and synchronization alerts as well as analytics and performance measurement.
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