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Demand Driven Distribution (DDD)

Led by Carol Ptak and Chad Smith, this is the first online delivery of the fully completed program! Five 3-hour sessions starting June 19.

Demand Driven Distribution (DDD)
Demand Driven Distribution (DDD)

Time & Location

Jun 19, 2024, 7:00 AM – 10:00 AM PDT


About the class

This class  will teach the principles of Demand Driven DRP (DDDRP) and how these principles are applied to provide a sustainable competitive advantage in the distribution of goods in the VUCA world.  This is the preparatory class for the DDDP professional endorsement.

The class is delivered through five 3-hour sessions each Wednesday starting on June 19, 2024. Each session starts at 7:00 AM Pacific/Los Angeles Time.


There are no prerequisites to attend the DDD program. The content contains some overlap with the Demand Driven Planner (DDP) program but has completely unique distribution related emphasis and scenarios.


Module 1: Distribution Today Part 1: Conventional Distribution Planning Part 2: The VUCA World

Module 2: The Importance of Flow Part 1: It’s ALL About Flow Part 2: Flow and Inventory

Module 3: Becoming Demand DrivenModule 4: Strategic Decoupling Part 1: The Power of Decoupling Part 2: Determining Distribution Strategic Decoupling Points Part 3: Decoupled Lead Time in Distribution

Module 5: Buffer Profiles and Levels Part 1: Introducing Decoupling Point Buffers Part 2: Buffer Profiles and Individual Part Properties Part 3: Calculating Buffers

Module 6: Dynamic Adjustments Part 1: Recalculated Adjustments Part 2: Planned Adjustments

Module 7: Demand Driven Planning Part 1: The Net Flow Equation Part 2: Average On-Hand Range and Target Part 3: DDDRP Supply Order Generation Simulation Part 4: Decoupled Explosion Part 5: Prioritized Share

Module 8: DDDRP Execution Part 1: A New Execution Perspective Part 2: Buffer Status Alerts Part 3: Additional DDDRP Alerts

Module 9: Adapting the DDDRP Model Part 1: Tactical Adaptation (DDS&OP) Part 2: DDDRP Tactical Review Part 3: DDDRP Tactical Projections Part 4: DDDRP Model Reconfiguration Part 5: DDDRP Tactical Exploitation Part 6: DDDRP Strategic Recommendation Part 7: DDDRP Strategic Reconciliation

Module 10: The Inventory Target Ratio (ITR)

PROGRAM PREPARATIONThe official texts of the DDD are: Demand Driven Material Requirements Planning V3 (Ptak and Smith, Industrial Press 2019) Orlicky's Material Requirements Planning 4E (Ptak and Smith, McGraw-Hill, 2023)​Program attendees should visit the DDMRP - All in One Page on this website.​Program attendees should review the Demand Driven Institute Dictionary.


  • DDD Standard Ticket

    This registration includes the DDDP exam.




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