mirror of
https://github.com/bringout/oca-technical.git
synced 2026-04-21 07:12:05 +02:00
56 lines
2.4 KiB
ReStructuredText
56 lines
2.4 KiB
ReStructuredText
Demand Driven Material Requirements Planning is a formal multi-echelon
|
|
planning and execution method developed by Ms. Carol Ptak and Mr. Chad Smith.
|
|
|
|
DDMRP combines blended aspects of Material Requirements Planning (MRP),
|
|
Distribution Requirements Planning (DRP) with the pull and visibility
|
|
emphases found in Lean and the Theory of Constraints and the variability
|
|
reduction emphasis of Six Sigma.
|
|
|
|
This method has five sequential components:
|
|
|
|
#. *Strategic Inventory Positioning*. Answers the question "Given our system
|
|
and environment, where should we place inventory to have the best
|
|
protection?" and determines where should decoupling points of inventory be
|
|
placed.
|
|
|
|
#. *Buffer Profiles and Levels*. Determine the amount of protection at those
|
|
decoupling points.
|
|
|
|
#. *Dynamic Adjustments*. Allow the company to adapt buffers to group and
|
|
individual part trait changes over time through the use of several types
|
|
of adjustments.
|
|
|
|
#. *Demand Driven Planning*. Allow to launch purchase orders (POs),
|
|
manufacturing orders (MOs) and Transfer Orders (TOs) based on the priority
|
|
dictated by the buffers.
|
|
|
|
#. *Visible and Collaborative Execution*. These POs, MOs and TOs have to be
|
|
effectively managed to synchronize with the changes that often occur within
|
|
the "execution horizon."
|
|
|
|
These five components work together to greatly dampen, if not eliminate,
|
|
the nervousness of traditional MRP systems and the bullwhip effect in
|
|
complex and challenging environments.
|
|
|
|
This approach provides real information about those parts that are
|
|
truly at risk of negatively impacting the planned availability of inventory.
|
|
|
|
DDMRP sorts the significant few items that require attention from
|
|
the many parts that are being managed. Under the DDMRP approach,
|
|
fewer planners can make better decisions more quickly. That means companies
|
|
will be better able to leverage their working and human capital.
|
|
|
|
Demand Driven Material Requirements Planning is quickly being adopted
|
|
by a wide variety of leading companies across the world.
|
|
|
|
Some of the benefits reported by the DDMRP method include:
|
|
|
|
* High fill rate performance
|
|
* Lead time reductions
|
|
* Inventory reductions, while improving customer service
|
|
* Eliminate costs related to expedite
|
|
* Planners see priorities instead of constantly fighting the conflicting
|
|
messages of MRP
|
|
|
|
It is highly recommended to read the book 'Demand Driven Material
|
|
Requirements Planning (DDMRP)' by Carol Ptak and Chad Smith.
|