This document discusses how product configuration and matrix bills can help manufacturers offer more product options and customization to customers while reducing costs and complexity. It explains that matrix bills allow companies to offer thousands of product combinations without having to manage thousands of unique part numbers and bills of materials. The matrix bill approach defines optional components and quantities needed in a table based on customer selections. This streamlines production and inventory management while giving customers extensive choice. The document provides several examples of how matrix bills work for products with options like colors, materials, dimensions and more. It highlights benefits like reduced part numbers, more efficient design and production planning, lower inventory needs, and an almost unlimited ability to customize products.
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Matrix Bills
1. How Product Configuration/Matrix Bills Can Transform Your Business
Beat Foreign and Domestic Competition by Offering Your Customers More Selection
Your competition has broadened and become more sophisticated, while your customers are
demanding more and more from you. Their
demands for increased product selections
coupled with the trend towards smaller and
smaller order quantities present a daunting
challenge for any small to medium sized
manufacturer. Fortunately, there is an
innovative solution that not only lowers
costs, but also helps to build a wall against
your competition.
The Solution-Matrix Bills
Product Configuration with Matrix Bills &
Routings is a technology that has
streamlined the order entry and
manufacturing processes for companies that produce custom products. The results have also
been dramatic in lowering or eliminating both inventories and obsolete stock. Some companies
have even eliminated their finished goods entirely, and are fulfilling customer demands on a
direct to-order basis. (See article Product Configuration on the knowledge page of
www.workwiseinc.com)
Even more importantly, product configuration with matrix bills & routings allows you to offer
options and features to your products that are extremely difficult for your competitors to match.
Lets review an example. You are a manufacturer of food blenders. Your foreign competition
makes them in 10 colors, 4 motor options, and 4 blending option panels and has a unique BOM
and Routing for each combination, resulting in 160 possible products. They build the blenders
to a forecast that projects how many of each of the 160 products will be sold. They will be
successful if their customers order in quantities, colors, motor types, and power options that
were predicted. But what happens when demand explodes for red, high speed blenders with the
deluxe blending power strip? There will be shortages for the highly demanded item, and excess
inventories for everything else, leaving expensive inventory with a 35% carrying cost, and lost
business...
You could, however, immediately supply those blenders in any permutation that the customer
demands and in quantities that closely match current demand levels. You could final-assemble
those blenders from component and sub-assembly inventory on a daily basis. Now, as the
demand pattern shifts, so can you. Using a much more responsive approach, you could have
fabricated 3 months worth of blender bases, assembled 2 months worth of motors, and have
purchased 30 days supply of power sets (from suppliers with whom you have 3 day delivery
agreements). You also might have developed a quick-fire paint room with enough paint to last 3
2. weeks. And with structured Matrix BOMs and Routings that work with an Order Entry
Configuration process, you could produce and ship to each custom demand while still
maintaining a lower and more flexible inventory investment. Who do you think would have the
cost advantage now? Who will be able to jump on moving trends and sell even more?
Matrix Bills- Ultimate Choice without the Part Number Problem
Stop creating all those one-time part numbers theres a better way.
The beauty of matrix bills is that you can offer an endless array of options without causing
turmoil and confusion in your shop. Lets look at a common example, the automobile. Most
everyone is familiar with the fact that you can select quite a variety of options- seats, air
conditioning, colors, and hundreds of other choices. For example, if you check out the
manufacturers on-line configurator for the popular Mini Cooper, the visual provided illustrates
that there are over 10 million combinations of ways to configure this automobile.
Of course, it is not possible to manage the millions of end part numbers, so they handle it
through matrix bills of material. The customer selects from a series of option choices, and the
product is then assembled based on those choices. In this visual example, you are prompted to
configure the various options for the automobile.
3. Where Did the Matrix Bill Idea Come From?
Years ago, engineers recognized that when a product
has a number of options, a matrix or tabular drawing
could replace the need for multiple part numbers,
and reduce the number of drawings that needed to be
maintained. A Matrix Drawing is simply a drawing
that contains a table (see example below), listing all
needed component part numbers in the first column, with the top row listing all of the options
affecting that component part then an X or a quantity/per is entered to identify which
component parts are needed based on the option choices. Today you dont need drawings to
make this work, but the drawing shows that the concept makes a lot of sense, and is easy to
understand.
Lets Review another Example:
Heres a Matrix Bill Table where the part numbers to be chosen are a function of the Power
Option selected:
4. Power Light Assembly
Option Option
Part number 110V Power 220V Power
RL0010 110V Relay X
RL0014 220V Relay X
LB2034 60W 110V Bulb X
LB2029 60W 220V Bulb X
So, a customer needing the 110V Power option will be provided a product that includes the
110V Relay and Light Bulb. And these types of choices can affect any, and or every level of
the bill of material! This illustrated subassembly would require two component part numbers,
which in matrix bills has been reduced to one. If we were to add four color options to the
power light, then this subassembly would normally require 8 part numbers, but still only require
one with a matrix bill. You can only imagine if there were hundreds of different subassemblies
and numerous options for each. As a result, the Matrix Bill approach not only reduces the
number of drawings and end-part numbers significantly, it also does the same throughout all the
lower level parts as well.
Matrix bills can also have an impact on your lean initiatives and inventory as well. By not pre-
building subassemblies for each of the options, your inventories drop. By not using a separate
line to build the subassemblies, and streamlining them into your main operations, your business
becomes leaner.
Another Example
Now lets consider another dimension (no pun intended!) to this engineering challenge. Take a
situation where not only is the selection of a part number conditional based on the option
selected, but the quantity needed varies. This is always the case for a dimensional product.
When the product choices include materials and dimensions, the matrix approach can easily
support this as well. In the example below, not only do the material selections vary based on
the option choice, but also the quantity of material needed as this is a function of the customers
dimensional requirements. Heres a case in point, where the customer has specified the Length
and Width, and a Material Choice. Using Matrix Bills, we can correctly calculate the required
materials needed:
Option Option Option
Part number
Metal Normal
Duty
Metal Heavy
Duty Fiberglass
SM1234 12GA
Sheet Metal Length X Width
SM1234 10GA Length X Width Length X Width
5. Sheet Metal
FG4986 Glass
Layup Length X Width
TR7896 Trim for
Fiberglass 2*(Length+Width)
When a customer asks for a Heavy Duty Metal Door 4 X 8, then the bill of material will
automatically include 32 square feet of Part Number SM1234 10 GA Sheet Metal.
When another customer asks for a Fiberglass Door 10 X 12, then the bill of material will
automatically include 120 square feet of FG4986 Glass Layup, and also 44 linear feet of
TR7896 Trim for Fiberglass.
And all accomplished with no additional part numbers! This clearly provides the way to
streamline order entry and production for complex and dimensional products.
REMEMBER THE FLOOR!
The matrix concept is also applicable to work instructions as well as Bill of Materials. All
possible operational steps for a configured product are included in one comprehensive Routing,
and each operation is linked to the appropriate option or feature. In this way, during Order
Entry, as the choices are entered, not only is a unique, customer specific BOM put together by
the Matrix Configurator, but a specific operational routing is also assembled for the shop.
Matrix Bill/Routing Definition Order Specific Options Shop Order Specific Bill of Material/Routing
Summary
1. Huge reduction of part numbers, unique BOMs and Routings
2. Improved Design and Industrial Engineering Efficiencies
3. Less inventory and more valuable inventory that is built to assemble-able levels rather
than white elephant levels,
4. Dramatically increased product offerings with virtually unlimited choice for the
customer.
If any of these benefits seem attractive to you, check out an ERP Manufacturing System that
includes Matrix BOMs & Routings in its Product Configuration Application.