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odoo-bringout-oca-ddmrp-ddmrp/ddmrp/README.rst
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odoo-bringout-oca-ddmrp-ddmrp/ddmrp/README.rst
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.. image:: https://odoo-community.org/readme-banner-image
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:target: https://odoo-community.org/get-involved?utm_source=readme
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:alt: Odoo Community Association
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=====
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DDMRP
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=====
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..
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!! This file is generated by oca-gen-addon-readme !!
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!! changes will be overwritten. !!
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!! source digest: sha256:f43055b32a5e8e104d8a45da35fc5716767773214054bbfe54da0c23dd8be731
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
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:target: https://odoo-community.org/page/development-status
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:alt: Beta
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.. |badge2| image:: https://img.shields.io/badge/license-LGPL--3-blue.png
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:target: http://www.gnu.org/licenses/lgpl-3.0-standalone.html
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:alt: License: LGPL-3
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.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fddmrp-lightgray.png?logo=github
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:target: https://github.com/OCA/ddmrp/tree/16.0/ddmrp
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:alt: OCA/ddmrp
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.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
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:target: https://translation.odoo-community.org/projects/ddmrp-16-0/ddmrp-16-0-ddmrp
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:alt: Translate me on Weblate
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.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png
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:target: https://runboat.odoo-community.org/builds?repo=OCA/ddmrp&target_branch=16.0
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:alt: Try me on Runboat
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|badge1| |badge2| |badge3| |badge4| |badge5|
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Demand Driven Material Requirements Planning is a formal multi-echelon
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planning and execution method developed by Ms. Carol Ptak and Mr. Chad Smith.
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DDMRP combines blended aspects of Material Requirements Planning (MRP),
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Distribution Requirements Planning (DRP) with the pull and visibility
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emphases found in Lean and the Theory of Constraints and the variability
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reduction emphasis of Six Sigma.
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This method has five sequential components:
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#. *Strategic Inventory Positioning*. Answers the question "Given our system
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and environment, where should we place inventory to have the best
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protection?" and determines where should decoupling points of inventory be
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placed.
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#. *Buffer Profiles and Levels*. Determine the amount of protection at those
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decoupling points.
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#. *Dynamic Adjustments*. Allow the company to adapt buffers to group and
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individual part trait changes over time through the use of several types
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of adjustments.
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#. *Demand Driven Planning*. Allow to launch purchase orders (POs),
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manufacturing orders (MOs) and Transfer Orders (TOs) based on the priority
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dictated by the buffers.
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#. *Visible and Collaborative Execution*. These POs, MOs and TOs have to be
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effectively managed to synchronize with the changes that often occur within
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the "execution horizon."
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These five components work together to greatly dampen, if not eliminate,
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the nervousness of traditional MRP systems and the bullwhip effect in
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complex and challenging environments.
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This approach provides real information about those parts that are
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truly at risk of negatively impacting the planned availability of inventory.
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DDMRP sorts the significant few items that require attention from
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the many parts that are being managed. Under the DDMRP approach,
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fewer planners can make better decisions more quickly. That means companies
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will be better able to leverage their working and human capital.
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Demand Driven Material Requirements Planning is quickly being adopted
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by a wide variety of leading companies across the world.
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Some of the benefits reported by the DDMRP method include:
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* High fill rate performance
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* Lead time reductions
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* Inventory reductions, while improving customer service
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* Eliminate costs related to expedite
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* Planners see priorities instead of constantly fighting the conflicting
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messages of MRP
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It is highly recommended to read the book 'Demand Driven Material
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Requirements Planning (DDMRP)' by Carol Ptak and Chad Smith.
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**Table of contents**
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.. contents::
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:local:
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Installation
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============
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We strongly recommend to modify the configuration of the reservation method
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to manual in the outgoing operation types (so deliveries
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related to Sales Orders aren't automatically reserved) and to avoid to
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reserve stock for specific moves, buffers are in fact a reservation of stock.
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However, while **reservation is discouraged**, it is still available to be
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used, in case of reserved stock be aware that the buffer will be blind to this
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transfers and stock and you are bypassing the DDMRP reordering flow.
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Configuration
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=============
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Scheduled actions
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~~~~~~~~~~~~~~~~~
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* Go to *Settings > Technical*.
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* 'DDMRP Buffer ADU calculation'. Computes the Average Daily Usage for all
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Buffers.
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* 'Reordering Rule DDMRP calculation'. Computes the Qualified Demand, Net
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Flow Position, Planning and Execution priorities for all Buffers.
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Decoupled Lead Time computation
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The DLT is automatically computed by the system.
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For manufactured products' buffers just remember to provide and
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set properly the following information:
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* The *Manufacturing Lead Time* for the manufactured product. It can be found
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at the product form view under the tab *Sales*.
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* The *Delivery Lead Time* for the preferred vendor of a product. This is
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important for the products which are purchased and are components in any
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Bill of Materials.
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For purchased/distributed products' buffers the logic is simpler.
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* In the first place the system will look if there are Vendors for the product,
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if so it will use the *Delivery Lead Time* of the preferred one.
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* In case of absence of vendors, the *Lead Time* at the bottom of the Buffer
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form view will be used.
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Usage
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=====
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To easily identify were are you maintaining buffers in your Bill of
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Materials, you will need to first provide location information on the Bills
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of Materials.
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* Go to *Manufacturing / Products / Bill of Materials* and update the
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'Location' in all the Bill of Materials and associated lines,
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indicating where will the parts be placed/used during the manufacturing
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process.
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* Print the report 'BOM Structure' to display where in your BOM are you
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maintaining buffers, and to identify the Lead Time (LT) of each product, and
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Decouple Lead Time (DLT).
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Buffers
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~~~~~~~
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To list the list of inventory buffers, go to one of the following:
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* *Inventory / Master Data / Stock Buffer Planning*
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* *Inventory / Master Data / Reordering Rules*
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Buffer Profiles
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~~~~~~~~~~~~~~~
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Buffer profiles make maintenance of buffers easier by grouping them in
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profiles. Changes applied to the profiles will be applicable in the
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associated buffer calculations.
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* Go to *Inventory / Configuration / Buffer Profiles*.
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The Buffer Profile Lead Time Factor influences the size of the Buffer Green
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zone. Items with longer lead times will usually have smaller green zones, which
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will translate in more frequent supply order generation.
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* Go to *Inventory / Configuration / Buffer Profile Lead Time Factor* to
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chan
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The Buffer Profile Variability Factor influences the size of the Buffer Red
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Safety zone. Items with longer lead times will usually have smaller green
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zones, which will translate in more frequent supply order generation.
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* Go to *Inventory / Configuration / Buffer Profile Lead Time Factor*.
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Usual factors should range from 0.2 (long lead time) to 0.8 (short lead time).
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Product attributes
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~~~~~~~~~~~~~~~~~~
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* For manufactured products, go to *Manufacturing / Products* and
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update the 'Manufacturing Lead Time' field, available in the tab *Inventory*.
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* For purchased products, go to go to *Purchasing / Products* and update the
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*Delivery Lead Time* for each vendor, available in tab *Purchase* and section
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*Vendors*.
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ADU Calculation Methods
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~~~~~~~~~~~~~~~~~~~~~~~
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The Average Daily Usage (ADU) defines the frequency of demand of a product in a
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certain location. It can be computed in different ways, which you can configure
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with ADU calculation methods as follows:
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#. Go to *Inventory / Configuration / DDMRP / ADU calculation methods*.
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#. Indicate a name, a calculation method (fixed, past-looking,
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future-looking or blended).
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#. Fill the corresponding period (past, future or both for blended method) to
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specify the length of period consideration (in days).
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#. Indicate the source of information: stock moves or demand estimates.
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#. If you use the blended method fill also the *Past Factor* and
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*Future Factor*.
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If you do not have prior history of stock moves in your system, it is advised
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to use fixed method or start to work on future estimates. If you have
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past-history of stock moves, best use past-looking method or blended method.
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The ADU is computed every day by default in a background job independently
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from the other buffer fields. This computation can be done with less frequency
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but it is not recommended to run it less than weekly or more than daily.
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Circumstantially, If you need to force the calculation of the ADU go to
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*Inventory / Configuration / DDMRP / Run DDMRP* and click on
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*Run ADU calculation*.
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Known issues / Roadmap
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======================
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The DDMRP `roadmap <https://github.com/OCA/ddmrp/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement>`_
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and `known issues <https://github.com/OCA/ddmrp/issues?q=is%3Aopen+is%3Aissue+label%3Abug>`_ can
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be found on GitHub.
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Changelog
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=========
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13.0.1.1.0 (2020-07-01)
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~~~~~~~~~~~~~~~~~~~~~~~
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**Features**
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- - New setting *Update NFP on Stock Buffers on relevant events*.
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- New dedicated settings block. (`#50 <https://github.com/OCA/ddmrp/issues/50>`_)
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13.0.1.0.0 (2020-06-11)
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~~~~~~~~~~~~~~~~~~~~~~~
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* [MIG/REF] Migration of module to v13 and refactor (added new dedicated model
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for stock buffer).
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11.0.1.3.0 (2019-02-21)
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~~~~~~~~~~~~~~~~~~~~~~~
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* [ADD] New chart that depict information about the supply and demand (
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displaying also de order spike threshold and horizon) for a buffer.
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(`#40 <https://github.com/OCA/ddmrp/pull/40>`_)
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11.0.1.2.0 (2019-01-29)
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~~~~~~~~~~~~~~~~~~~~~~~
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* [IMP] Performance improvement of execution priority calculation and ADU.
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(`#36 <https://github.com/OCA/ddmrp/pull/36>`_)
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* [IMP] Use the minimum quantity to adjust the procure recommendation.
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(`#37 <https://github.com/OCA/ddmrp/pull/37>`_)
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11.0.1.1.0 (2018-08-31)
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~~~~~~~~~~~~~~~~~~~~~~~
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* [IMP] Implemented Blended ADU calculation method.
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(`#23 <https://github.com/OCA/ddmrp/pull/23>`_)
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11.0.1.0.0 (2018-07-16)
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~~~~~~~~~~~~~~~~~~~~~~~
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* Start of the history
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Bug Tracker
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===========
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Bugs are tracked on `GitHub Issues <https://github.com/OCA/ddmrp/issues>`_.
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In case of trouble, please check there if your issue has already been reported.
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If you spotted it first, help us to smash it by providing a detailed and welcomed
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`feedback <https://github.com/OCA/ddmrp/issues/new?body=module:%20ddmrp%0Aversion:%2016.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
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Do not contact contributors directly about support or help with technical issues.
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Credits
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=======
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Authors
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~~~~~~~
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* ForgeFlow
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Contributors
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~~~~~~~~~~~~
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* Jordi Ballester Alomar <jordi.ballester@forgeflow.com>
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* Lois Rilo Antelo <lois.rilo@forgeflow.com>
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* Guewen Baconnier <guewen.baconnier@camptocamp.com>
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* Adria Gil Sorribes <adria.gil@forgeflow.com>
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* Christopher Ormaza <chris.ormaza@forgeflow.com>
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Other credits
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~~~~~~~~~~~~~
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The initial development of this module has been financially supported by:
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* Aleph Objects, Inc.
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Maintainers
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~~~~~~~~~~~
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This module is maintained by the OCA.
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.. image:: https://odoo-community.org/logo.png
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:alt: Odoo Community Association
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:target: https://odoo-community.org
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OCA, or the Odoo Community Association, is a nonprofit organization whose
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mission is to support the collaborative development of Odoo features and
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promote its widespread use.
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.. |maintainer-JordiBForgeFlow| image:: https://github.com/JordiBForgeFlow.png?size=40px
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:target: https://github.com/JordiBForgeFlow
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:alt: JordiBForgeFlow
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.. |maintainer-LoisRForgeFlow| image:: https://github.com/LoisRForgeFlow.png?size=40px
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:target: https://github.com/LoisRForgeFlow
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:alt: LoisRForgeFlow
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.. |maintainer-ChrisOForgeFlow| image:: https://github.com/ChrisOForgeFlow.png?size=40px
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:target: https://github.com/ChrisOForgeFlow
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:alt: ChrisOForgeFlow
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Current `maintainers <https://odoo-community.org/page/maintainer-role>`__:
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|maintainer-JordiBForgeFlow| |maintainer-LoisRForgeFlow| |maintainer-ChrisOForgeFlow|
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This module is part of the `OCA/ddmrp <https://github.com/OCA/ddmrp/tree/16.0/ddmrp>`_ project on GitHub.
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You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
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