Certified Demand Driven Planner (CDDP)

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. 


Introduction to DDMRP


CDDP Program and Certification

Module 1: MRP in the Modern World – the materials challenge in the 21st Century

• Key questions for planning and flexibility
• Dealing with Variability
• Materials or Capacity – Where to Focus First
• Continued Relevancy of MRP formal planning
• The Challenge of MRP in Today’s Environment
• MRP and Pull-Based Methods (e.g. Lean, DBR)
• The Stagnation of MRP
• The MRP Conflict


Module 2: Demand Driven Material Requirements Planning Introduction

• What does “Demand Driven” mean?
• Blending Independence and Dependence
• Part Types in DDMRP
• Planning and Execution
• The Five Primary Components of Demand Driven MRP
• DDMRP Comparison to Past Practices


Module 3: Strategic Inventory Positioning

• The Positioning Factors
• ASR Lead Time
• ASR Lead Time and Matrix BOMs


Module 4: Distribution Network Positioning

• Distribution network factors
• Cumulative variability
• Demand driven versus push and promote
• Network Configurations and Options


Module 5: Buffer Profile and Level Determination

• Inventory – Asset or Liability
• Buffer Profiles
• Buffer Zones
• Calculating Buffer Levels
• Continuous Improvement and Buffers
• Buffer Level Summary

Module 6: Dynamic Buffers

• Recalculated Adjustments
• Planned Adjustments
• Manual Adjustments


Module 7: Demand Driven Planning – Stocked Parts

• Part Planning Designations
• The DDMRP Planning Process
• Supply Order Generation for Stocked Items
• DDDRP Supply Order Generation Considerations
• Supply Generation for Non-Stocked Items
• Decoupled Explosion


Module 8: Highly Visible and Collaborative Execution

• Challenging Priority by Due Date
• Buffer Status Alerts
• Synchronization Alerts
• Execution Collaboration


Module 9: DDMRP and Master Scheduling

• DDMRP Impacts to a Master Production Schedule
• DDMRP and Capacity Scheduling Implications
• DDMRP and Sales and Operations Planning
• DDMRP impacts to ERP


Module 10: DDMRP Performance Reporting and Analytics

• DDMRP Performance Reporting
• Analytics


Course Preparation:

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 review the following white papers:

Ways to pursue the Certification

  1. Online course/instructor and exam -  For people who have a busy schedule with unanticipated changes, we have a solution for you. We will send you the study material which includes access to 16 hours of training videos (from a live class) alongwith the presentations/study material and you can study at your own pace/view unlimited times. When ready, send us an email and we will send you login instructions for your online exam at your preferred dates/times.These sessions happen every month and you can join one by looking at our event calendar here
  2. In person session with instructor - Many sessions are held all around the world. Check our event calendar to find one near you. If you can't find one, please contact us to arrange for one


For further details about our scholarships, please click here

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