Plant & Manufacturing Terminology
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There are many terms used by industry insiders but many may not be well
known by those without significant manufacturing experience. The listing
below covers some of the more common terms.
A
ABC: See Activity Based Costing.
ABSENTEE POLICY:
ACCOUNTS PAYABLE: Liabilities that result from a
purchase of goods or services on an open account.
ACCOUNTS RECEIVABLE: Amounts owed to a company by
customers as a result of delivering goods or services and
extending credit in the ordinary course of business.
ACQUISITION:
ACTIVITY BASED COSTING (ABC): ABC system identifies and then
classifies the major activities of a facility's production
process into one of the following four categories: unit-level,
batch-level, product-level, and facility-level activities. Costs
in the first three categories of activities are assigned to
products using bases (i.e. cost drivers) that capture the
underlying behavior of the costs that are being assigned. The
costs of facility-level activities, however, are treated as
period costs or allocated to products in some arbitrary manner.
AD&D:
ADD:
ALLOCATION:
AMORTIZATION: The systematic reduction of a lump-sum
amount; specifically when referring to a long-lived asset, it
usually means the allocation of costs of intangible assets to the
periods that benefit from these assets. Also see depreciation.
ANDON: The visible light or sign that denotes the state
of an operation (i.e., on, trouble or off.) The process can be stopped for quality issues
and everyone in the immediate area can see that this has happened.
A/P: See Accounts Payable
A/R: See Accounts Receivable
ASSETS:
B
BACKROOM COSTS: Indirect costs
that do not add direct value to a product and may or may not be necessary
to support its production. Examples are matching supplier material receipts
to their invoices to make sure that they are being paid accurately,
sending invoices to customers, matching inventory records on the computer
to actual inventory, accounting for product costs at each station on
a production routing, keeping track of hazardous materials receipt,
control, and proper disposal, tracking customer warranty issues, operation
of the computer systems that control the production process, etc.
BENCHMARKING: Benchmarking is defined as a process of continuous comparison
of a companys performance on determined measure against
that of the best in an industry or a class, considered the
standard or the reference. Benchmarking is one of the most
popular business management tool for establishing competitive
advantage and initiating performance improvements, being used by
companies such as Xerox, Motorola, AT&T and General Motors.
The Benchmarking process support the establishment and adoption
of best practices with enhanced organization performance which
leads to continuos improvement. When it is used toward low-cost
producer, the focus are on costs improvements.
Benchmarking is closely associated with the concept of Total
Quality Management (TQM) when considered as an efficient approach
to enhancing the quality of an organizations response to
its customers needs while increasing the character of its
internal culture, in both policies and procedures. Benchmarking
is seen as a major component of "improvement
initiatives", as it enables an organization to identify
strengths and weaknesses when compared to the references, while
helping to achieve the lowest costs on a determined product,
process or method.
Four types of benchmarking have been identified. Internal
compares a process to similar operations within the same company;
it may yield 10% performance improvement. Competitive is specific
competitor-to-competitor comparisons for the process; it may
yield 20%. Functional runs comparisons to similar functions
within the same industry or with outsiders (e.g. chemical
companies are increasingly benchmarking with apparel mail-order
in areas such as order entry); it may yield 35%. Generic compares
procedures that are unrelated but have similar processes (e.g.
airline gate turnaround maintenance and the Indianapolis 500 pit
crew); it may yield 35%.
The functions or processes that need benchmarking include
those that represent the highest percentage of a companys
cost, that are of strategic value to a company and those that can
be sharply enhanced regarding cost performance.
An example of a successful process benchmarking is John Deere,
a machinery supplier, where it has become a hallmark of
manufacturing. At Deere, the benchmarking activity can be broken
in four parts. The planning stage involves identifying the
process that needs to be improved, choosing the benchmarking team
and internal benchmarking. During the collection phase,
participants develop a survey, make a list of prospective
benchmarking partners and call them, conduct the actual
benchmark, visit the site if necessary and share the collected
information to the partners. The analysis stage involves
interpreting the data, writing the analysis, sharing information,
discussing results and making recommendations for improving
processes. At the final stage, recommendations are implemented.
However, several risk are associated with benchmarking as a
management tool. These include the selection of an unsuitable set
of performance measures, failure to gain support and assistance
from top management, misunderstanding of the benchmarking
concept, and mismanagement of information.
AT&T gives four tips to a successful process. The process
should be quickly completed within a realistic framework as team
members may move from the assignment, or a new management may not
want the work done. The critical success factors, derived from a
companys survival parameters, need to be integrated. The
fallacy of best-in-class companies for benchmarking should be
avoided, we need to identify the low-cost producer not relying on
rumors. Proper management of changes during benchmarking needs to
be employed.
BENEFITS:
BEST PRACTICE: Denotes that practice that is considered the most efficient and effective
for a industry, function, and time. Best practicea are continually
evolving over time. Best practices are often used across industries to set new "best practice" standards.
BILL OF MATERIAL: A bill of material is an ordered listing
of all the parts in a product ready for customer shipment. The list
usually includes the part number, how many of each part is required,
and a brief word description of the part. It is best practice to use
only words that appear in a parts dictionary. Bills of material are
usually organized by indenting the subsystems. Thus, a bill of material
for a commercial building may have electrical, HVAC, communications,
lighting, controls, glass, etc. subsystems each a bill of materials
on its own. The bill of materials for the complete building would have
the primary building material components and subsystems indented in
this list. In best practice, parts in a bill of materials are taken
from a database of parts with each part having a part file folder
describing and specifying the part.
BLUESKY:
BORROWINGS:
BUILDING TO CUSTOMER ORDER versus BUILDING TO FORECAST: Building
to customer order means that at least the final assembly, packaging,
and shipping waits until there is a firm order for the product. Building
to forecast means that the product is manufactured to a forecasted demand.
Building to customer order means that the product is pulled by customer
order rather than pushed by a forecast.
There is no relationship between building to customer order and whether
the material flow prior to the final assembly is push or pull. A plant
can build to customer order pushing the material release to suppliers
by forecast or a plant can use the pull system completely in building
to a forecast. Neither the processes in the plant nor the suppliers
know where the demand comes from in a pull system. The final product
demand could come from a forecast even by customer or actual customer
firm orders.
BURDEN: Also known as overhead and sometimes as indirect costs.
It is the support system cost with respect to the direct costs for manufacturing
a product. Burden rates vary widely among operations depending on the
equipment investment and other factors. Burden rates include all indirect
costs and are usually referenced to direct labor cost excluding fringes
required for the direct product manufacture.
C
CAD: Computer aided design is a process of generating
and manipulating product designs through computer software. The
software allows all information of a part to be generated and
stored electronically at a computer terminal and transferred to
other sites or machines.
CAM: Computer aided manufacturing (often used
synonymously with CAD) is a similar process of generating
manufacturing processes electronically.
CAPITAL EXPENDITURES:
CIM:
CLASSIFICATION:
CNC: Computer numerical control generally refers to
equipment which is operated through the use of digital
information rather than human input. For instance, a CNC milling
machine will automatically produce the desired net shape of a
part as specified by the controlling program.
CONTROL CHARTS: Statistical charting process which is
used to identify sporadic and chronic faults in a process. Mean
and variance measurements of a product are charted and acceptable
limits are set on these values. An out of control process can be
identified and adjustments made to remedy the situation through
the use of control charts.
COST OF GOODS SOLD: The original acquisition cost of
the inventory that was sold to customers during the reporting
period. Also, see Cost of Goods Sold.
COST OF SALES (COS): This abbreviation denotes the "cost of sales".
It denotes all the costs in a plant. It is the sum of materials cost
and value added. The COS can also be referred to as "cost
of goods sold".
CURRENT:
CUSTOMER SATISFACTION:
D
DAYS:
DAY SUPPLY:
DCF:
DEBT:
DEPRECIATION: the systematic allocation of the
acquisition cost of long-lived or fixed assets to the expense
accounts of particular periods that benefit from the use of the
assets. Also see amortization.
DFM:
DIES: See tooling
DIRECT
DIRECT LABOR: Denotes that portion of the workforce directly
assigned to manufacture the product. Direct labor also refers to the standard
direct hours that are needed to manufacture a component or system, e.g.,
there are 1.25 hours DL in a Honda seat set. See also indirect labor.
DIRECT MATERIALS PURCHASING is purchasing from suppliers
on a contractual basis for a fixed period of time or amount of product.
For job shops, the purchasing contract can be for only
one job. For repetitive manufacturing, the materials are usually purchased
on contracts that last for a model run or at least a year. The contract
specifies the price, the delivery requirements, the tooling agreements,
the quality standards, the release communications and data receipt requirements,
and a host of other terms and conditions. The purchase
contract does not specify the releases. That is done by the receiving
plant as their forecasts or orders require. There can be confusion between
purchasing and releasing. Purchasing usually does not release nor do
the operations purchase. These are two separate functions that tie together
only in that the total demand released to the suppliers by the plants
should approximate the volumes specified in the purchase orders.
DISABILITY
DISCOUNTED CASH FLOW (DCF):
DISPUTE RESOLUTION:
DISTRIBUTION: This term denotes the process and/or entities
that take manufactured products and make them available to the ultimate
customer. In the automotive and appliance industries, it is the automobile
and appliance dealers. Distribution can be quite complicated. In the
beverage industry, there may be bottlers who have their own distribution
so that there are two levels of distribution. There may be several parallel
distribution paths to consumers. Original equipment manufacturers (OEMs) may distribute to other OEMs.
E
EBITDA:
ECONOMIC ORDER QUANTITY: The optimal batch size for
an order that minimizes the total annual cost, including cost of
ordering (setup cost), inventory holding cost, and cost of
materials procured.
EEOC--Equal Employment Opportunity Commission is the
administrative agency which administers Title VII of the Civil
Rights Act. It is headed by five commissioners appointed by the
President. Title VII prohibits discrimination in employment based
on race, color, religion, sex, or national origin.
EOC:
EPS:
EQUIPMENT:
EQUITY:
ER&D:
ERROR PROOFING (POKA YOKA): Error proofing seems to be a simple
concept, but there are many variations on the primary theme. The basic
concept is that a product is prohibited from being taken out of its
fixture if it has a quality defect as a result of the machine or operator
action. The defect must be corrected prior to release of the product
from the fixture. An industry example is the case where four nuts are
spot welded to the bottom frame of a metal seat cushion for bolting
the seat into the vehicle. The machine that welds the nuts onto the
frame was configured so that the fixture would release only if there
were a nut on each of the four locations.
Another example is a seat frame where the back is attached to the recliner
and the recliner to the bottom frame with five bolts. In producing over
3,000 seats per day, occasionally a bolt was left out. To solve the
problem, the attachments were redesigned to use five different diameter
bolts, the five different bolts were brought to the line in a small
pallet that held only those five bolts, and a different electric nut
driver used for each bolt. If each nut driver were did not pull its
proper power in the proper sequence, the seat frame could not be released
from the fixture. There was also a visual check from the bolt holders
of bolts needed and used.
EVA:
F
FASB: The Financial Accounting Standards Board is a
private-sector body that determines generally accepted accounting
standards in the United States.
FILE FOLDER (PARTS): There are many names for a parts
file folder. The concept is simple, however. A parts file folder
contains all the required information about a part including
cost, lead times for production, approved suppliers, tooling
requirements and cost, drawings of the part, its tooling, and
fixturing, computer data if it has been programmed for production
on a computer-controlled machine, quality specifications, key
characteristics, etc.
FINISHED GOODS: Inventory consists of the goods that
have been completed and are awaiting sale. Finished goods are
valued at the cost of the material plus the cost of
manufacturing.
FIXTURES: Fixtures are what secure tools and the product raw
material to general-purpose machines. The location and fixture type
make a significant difference in the speed with which tools can be changed
and in the quality or the part produced. It is best practice to fix
a tool at just the right point so that the key characteristics are produced
with the most accuracy given the machine and tools being used to make
the part.
FMEA:
FORECAST:
FORKLIFT:
FRINGES:
G
GEMBA:
GOODWILL: The excess of the cost of an acquired company
over the sum of the fair market value of its identifiable
individual assets less the liabilities.
GRIEVANCE:
GROSS MARGIN: Denotes the ratio in percent of the difference
between sales and COS to Sales for the total company. Gross margin for
a plant would be the plant's revenues minus COS divided by revenue expressed
in percent.
H
HAZMAT:
I
INDIRECT COSTS:
INDIRECT LABOR: Denotes the production
workers that support the direct labor function. Indirect labor functions
can include maintenance, material handling, setup, product testing,
and inspection. Best practice limits indirect functions and indirect
people by, for example, assigning direct responsibility for all functions
at routing stations to teams that would include direct operations, maintenance,
material movement, and scheduling.
INVENTORY: Goods held by a company for the purpose of
sale to customers.
IRR:
ISO 9000:
ISO CERTIFICATION:
J
JIT: Just-in-time manufacturing system.In a full JIT system, the only parts that enter a plant or move from
process to process in a plant are those identified uniquely with a final
product, no more or no less. Thus, every part being supplied and every
part in the plant can be related directly to a bill of material of a
product that is either in production or shortly to be in production.
JIT is independent of distance and supplier location. NUMMI (GM/Toyota
joint venture that builds Corollas, Prizms, and Toyota trucks) insists
that its Fremont, California plant operate JIT even though most of its
suppliers are in the Midwest. It does this by having each supplier produce
just that day's material. It is picked up daily, consolidated on a unit
train in Chicago, and shipped to Fremont every day. Even though the
train takes twenty-four hours, the plant receives material the same
as if all supplier plants were only one or two hours away. The receiving
plant does not perceive that the train was made up thirty-six hours
earlier.
A plant that uses JIT exclusively is very rare. Forecasted demand is
common for many supplied parts. Further, parts get lost, stolen, and
damaged. Parts that do not meet quality standards must be reworked or
resupplied. For all these reasons and more, an MRP system is required.
MRP systems are quite complex and computer-based. The software incorporating
MRP systems can be expensive and difficult to install because it requires
and evaluation and possible change of all business practices.
JOB SHOPS: Job shops refer
to those operations where each order is more or less unique and where
the volumes are small or only one order. The clearest example of a job shop is a construction firm that constructs
unique buildings. The book manufacturing industry is another example
of a job shop if the production runs are small as is the case for a
textbook. The automotive, appliance, towel, petroleum refining, and
computer industries are examples of repetitive manufacturing. See also repetitive manufacturing.
Several industries
have characteristics of both repetitive manufacturing and job shops
in their operations. Even in job shops, standardized materials, machines,
and tooling and fixtures are desirable. Standard sizes, capacities,
and performance are characteristic of the construction industry. Also,
either industry may incur high tooling costs. Even in the construction
industry, repetitive manufacturing is gaining as modular assemblies
are replacing craftwork in many of the subassemblies.
K
KAIZAN:
L
LAYOFF:
LEVELED PRODUCTION: The distribution of production of
different kinds of items evenly through the day and week to
allocate work evenly and thereby use resources optimally
LIABILITIES: Economic obligations of the organization
to outsiders or claims against the assets by outsiders.
M
MAINTENANCE:
MANUFACTURING ENGINEERING:
MASTER PRODUCTION SCHEDULE:
MATERIAL CONTROL:
MATERIAL FLOW:
MATERIAL RELEASE: Release means the process and data by which
a supplier is notified that material is to be shipped. The supplier
may choose either to manufacture the product in anticipation of the
release (forecasting) or wait until receiving the release and manufacture
the product between the time that the release is received and the time
that the supplier must ship the product to reach the customer plant
on time. Release information usually specifies the part number and quantity
required and the time it is to be received at the customer plant dock.
MATERIALS:
MRO:
MRP: Material resource
planning. MRP systems are used in almost all
plants. They keep order among the bill of materials, forecasted demand,
long lead-time parts, and the inventory in the plant. The reason MRP
systems are generally required relate to the fact that all parts cannot
be supplied JIT. There are still suppliers that give price discounts
for larger orders. Further, material receipt, inventory tracking, and
engineering changes introduce complexity in plants unless the bills
of material are few and simple.
A plant that uses JIT exclusively is very rare. Forecasted demand is
common for many supplied parts. Further, parts get lost, stolen, and
damaged. Parts that do not meet quality standards must be reworked or
resupplied. For all these reasons and more, an MRP system is required.
MRP systems are quite complex and computer-based. The software incorporating
MRP systems can be expensive and difficult to install because it requires
and evaluation and possible change of all business practices.
MRP II:
MULTIPLE SOURCING:
N
NET INCOME: The remainder after all expenses have been
deducted from revenues.
NLRB: National Labor Relations Board is an independent
administrative agency responsible directly to the President which
administers most of the provisions of the National Labor
Relations Act.
NPD:
O
Occupational Safety and Health
Administration: The Occupational Safety and Health Act was first enacted by
Congress in 1970. Ever since, OSHAs mission has been clear
and unwavering: "to assure so far as possible every working
man and women in the nation safe and healthy working
conditions." Coverage of the Act extends to all employers
and their employees in the 50 states, the District of Columbia,
Puerto Rico, and all other territories under Federal Government
jurisdiction. Today federal OSHA maintains a staff of 2,209
employees (of which 1,113 are inspectors). OSHA operates under a
$336.5 million budget and covers more than 100 million Americans
at more than 6 million workplaces.
Every year in the United States, over 6,000 Americans die from
workplace injuries, an estimated 50,000 people die from illnesses
caused by workplace chemical exposures, and 6 million people
suffer non-fatal workplace injuries. This equates to about 17
Americans who die every day on the job and nearly 50 American
workers who are injured every minute. These injuries cost the
economy more than $110 billion a year.
Since 1970, the overall workplace death rate has been cut in
half. According to a recent study, in the three years following
an OSHA inspection that results in penalties, injuries and
illnesses have dropped on average by 22%. OSHAs top
priorities for inspections are life threatening situations or
accidents involving deaths or three or more workers injured
seriously enough to require hospitalization.
OSHA and its state partners have approximately 2,100
inspectors, investigators, engineers, physicians, educators,
standards writers, and other technical and support personnel.
Combined there are more than 200 offices throughout the country.
Nearly every working man and woman in the nation falls under
OSHAs jurisdiction (with some exceptions such as miners,
transportation workers, many public employees, and the
self-employeed).
Specifically, employers of 11 or more employees must maintain
records of occupational injuries and illnesses as they occur.
Under OSHA, all occupational injuries must be recorded if they
result in:
- Death
- One or more lost workdays
- Restriction of work or motion
- Loss of consciousness
- Transfer to another job
- Medical treatment (other than first aid)
OSHA recognizes that the key to success is encouraging
employers to work with their employees in hazard identification
and safety awareness, rather than have those workers depend
solely on OSHA inspectors. Today, OSHA is committed to a common
sense strategy of forming partnerships with employers and
employees; conducting fair but firm inspections; developing
sensible, easy-to-understand regulations and eliminating
unnecessary rules; and assisting employers in developing high
quality safety and health programs. In fiscal year 1997, state
consultants, authorized and funded largely by OSHA, conducted
21,596 free consultation visits with employers who asked for help
in establishing safety and health programs or dealing with
specific hazards at their workplace.
For information on OSHA publications and other informational
materials contact the U.S. Department of Labor OSHA Publications,
P.O. Box 37535, Washington, DC 20013-7535, (202)219-4667 or
(202)219-9266 (Fax). Since states adopt and enforce their own
standards under state laws, copies of state standards under state
laws may be obtained from the individual states.
OEM: Original Equipment Manufacturer. The term OEM denotes a
company or sector that manufacturers equipment ready for purchase by
the end-use customer. The large automotive companies are referred to
as OEMs. Suppliers to such companies supply to the OEMs, they are not
OEMs themselves. There is an implication of a distribution entity between an OEM
and the ultimate customer.
OSHA: See Occupational Safety and Health Administration
OPERATING INCOME: Gross profit less all operating
expenses.
ORDER:
OVERHEAD: Includes all manufacturing costs, other than
direct material and direct labor. In addition to indirect
material and indirect labor, overhead includes such costs as
utilities, maintenance, depreciation and taxes.
OVERTIME:
P
PARTS FILE FOLDER: There are many names for a parts file folder.
The concept is simple, however. A parts file folder contains all the
required information about a part including cost, lead times for production,
approved suppliers, tooling requirements and cost, drawings of the part,
its tooling, and fixturing, computer data if it has been programmed
for production on a computer-controlled machine, quality specifications,
key characteristics, etc.
PAYROLL:
PICK AND PLACE:
PLANT RATE: Plant rate is the total value added by a
plant divided by the total direct labor hours in a yearly budget. It
is the shop rate plus the over costs divided by the direct labor hours
in a yearly budget.
POKA YOKA: See Error Proofing.
PP&E: The property, plant and equipment or fixed assets of a company.
PRODUCT LIABILITY:
PRODUCTIVITY:
PULL SYSTEM FOR MATERIAL CONTROL: The pull
system means that the "release" for moving material within
the plant or from suppliers is signaled by the next process in line
that needs the material. The material is moved by the demand from the
succeeding process in the production chain or routings not by a central
schedule or general release. See also push system. This system is also what is referred as the Just In Time
System (JIT). The idea behind it is only to produce what is
required by the customer. In this system, the goods are produced
after the order for the goods have been placed by the customer.
The main challenge in implementing this system comes in when
looking at the supply side of raw materials as well as the
efficiency of the plants. A company that produces JIT, need to
have suppliers that can supply raw materials in a short notice
and are therefore located close by in order to receive raw
materials in a timely fashion for production. At the same time,
manufacturing JIT requires more than just good plants. They
require what is referred as the seven zeros that are essential
for the success of this system. They are
- Zero Defects: To avoid delays due to defects
(Quality at the source)
- Zero (Excess) Lot Size: To avoid "waiting
inventory" delays
- Zero Setups: To minimize setup delay and
facilitate small lot sizes
- Zero Breakdowns: To avoid stopping tightly coupled
line
- Zero (Excess) handling: To promote flaw of parts
- Zero Lead Time: To ensure rapid replenishment of
parts
- Zero Surging: Necessary in system without work in
progress buffers
The implementation of this system took Toyota over 30 years to
be perfected. However the trend seems to be going towards this
system in the United States. The biggest advantage of this system
is the reduction in cost of the goods as well as the flexibility
in production that help companies be more dynamic and competitive
in the industry.
PURCHASING:
PUSH SYSTEM FOR MATERIAL CONTROL: The push system denotes a system whereby material is released for production
and movement by a central or local scheduling algorithm and based on
forecasted or anticipated needs for that material. See also pull system. Traditionally, the Push system had been used in plants for
production scheduling. The push system is simply when the demand
for a product is forecasted and a production schedule is made up
according to the forecast of demand through a centralized system.
However, the main problem with this system is the variations
between the forecasted and the actual demand that may cause
excess inventory of finished goods or a backorder in production.
In order to avoid problems that are caused due to forecasting
errors, companies that use a push system may either
- Keep finished goods on inventory (safety stock)
- Have an excess lead time on delivery to give enough time
to produce enough
The main disadvantage of the system comes in when the plants
have to keep excess inventory or have long lead times for the
customers. Inventory costs money and long lead times cause
dissatisfied customers. At the same time, companies have spent
millions of dollars in the past just to get good a MRP software
that would be able to help planners plan the production
effectively.
With the push system, the demand for goods have to be
monitored very closely as the production schedule is subject to
change depending on the orders that come in. If most of the
products are being manufactured on batch production basis,
changing the setup for a different product may cause a long
delay. Due to this reason alone, a last minute incoming order
would be very hard to be facilitated into the production system.
Q
QFD:
QS 9000:
QUALITY:
QUALITY COST:
R
RELEASE (MATERIAL): Release means the process and
data by which a supplier is notified that material is to be
shipped. The supplier may choose either to manufacture the
product in anticipation of the release (forecasting) or wait
until receiving the release and manufacture the product between
the time that the release is received and the time that the
supplier must ship the product to reach the customer plant on
time. Release information usually specifies the part number and
quantity required and the time it is to be received at the
customer plant dock.
RELEASING OFF BILL OF MATERIAL: Releasing off a bill of material
means that the only information a supplier receives is a time sequence
of finished product part or model numbers. The suppliers must then know
which parts in the bill of materials are theirs. This sequence of final
products can be the only information shipped out to all suppliers that
do not use the "vending machine" approach. This greatly simplifies
material control and release. Instead of each part number for each supplier
part being separately communicated to the right supplier, all suppliers
receive only the sequence of final product or model numbers. In the
case of a vehicle or a refrigerator, the suppliers would only receive
the model number of the product being produced in the production sequence
along with the options code. It would then be the suppliers' responsibility
to ship the right parts for that model in sequence to the customer plant
JIT.
REPETITIVE MANUFACTURING: Repetitive manufacturing
refers to those operations where each product is produced more or less
continuously at significant volumes usually on an assembly line. It
is assumed that the products are completely engineering so that minimal
design or craftwork is done on the manufacturing line. See also job shops.
Several industries
have characteristics of both repetitive manufacturing and job shops
in their operations. Even in job shops, standardized materials, machines,
and tooling and fixtures are desirable. Standard sizes, capacities,
and performance are characteristic of the construction industry. Also,
either industry may incur high tooling costs. Even in the construction
industry, repetitive manufacturing is gaining as modular assemblies
are replacing craftwork in many of the subassemblies.
RESEARCH AND ENGINEERING:
REWORK:
ROBOT:
ROE: Net income divided by average equity.
ROI:
RONA:
ROS:
ROUTINGS: Routings are the steps that a product follows through
a manufacturing plant as it moves from machine to machine. There may
be several subsystems in a product that follow different routes finally
converging at one or more machines or assembly lines that complete the
final product.
S
SALARIED STAFF:
SCHEDULE:
SCRAP:
SELLING AND ADMINISTRATIVE:
SERVICES
SETUP: Denotes the process of changing or fitting tools on general
purpose equipment for a particular product. Best practice reduces setup
times and effort by designing the tools and their clamping and fixing
devices for rapid attachment and detachment, by having all the required
hand and special tools located conveniently near the equipment, and
by training the operational teams to make quick, safe tool changes.
SG&A:
SHOP COMMITTEE:
SHOP RATE: Shop rate is the direct labor cost plus the manufacturing
overhead divided by the total direct labor hours in the yearly budget
for the plant. It can range from $20-100 per hour. It is used to estimate
the cost for bidding for new business.
SHRINKAGE:
SINGLE SOURCING: Sourcing all the requirements
for a particular part to one supplier is called single sourcing. It
has been a purchasing truism forever that sourcing to more than one
supplier is required to obtain competitive pricing, quality, and delivery.
The Japanese automotive industry developed a system, however, that made
a form of single sourcing work more effectively than the multiple sourcing
practiced by the U.S. automotive industry. This modified single sourcing
system has begun to be adopted by all automotive companies and by other
industries as well.
The system sources to a single supplier all the requirements for a
product line early enough in the design cycle so that the supplier has
significant design responsibilities. The volumes can be quite attractive.
In the seating industry, the average contract in the early 1980s before
this system was adopted was in the range of one to three million dollars
per year for one year. After the new system was adopted the contracts
were for fifty to one hundred million dollars per year for five years
or more.
The supplier works to a target cost for the product that is set independently
and prior to the design process. The responsibility of the supplier
is then to design the product to the cost specified by the customer
and make a profit, to deliver the product to the customer on time, and
to meet the customer quality specifications. The supplier must develop
significant expertise in such subsystems to win and keep business in
this sourcing strategy.
In this system, a mutual dependency develops whereby the supplier has
the business for a model run of four to six years. Since the supplier
wants the business for the next model as well as the current model,
the supplier is motivated to keep costs down, quality up, and delivery
on time. At the next model design, more than one supplier has the opportunity
to bid for the yet to be designed product. In this way, the full history
of the current supplier is known during the bidding for the next design.
However, new ideas and concepts can be brought to the customer by competitors.
The system works well when there are at least two capable suppliers
that can bid on such large contracts. The seating industry has evolved
to this status from more than two dozen small firms in the early 1980s
to a very few, very large firms in the late 1990s. In 1981, Hoover Universal
seating (which JCI acquired) had less than one hundred fifty million-dollar
sales per year and Lear had less. In 1998, both Lear and JCI are above
nine billion dollars in sales.
SOURCING:
SPARE PARTS:
SPC: Statistical process control involves the
implementation of statistical tools (including control charts)
that monitor processes in order to identify improvement
opportunities. Process faults are identified, a root cause of the
fault is isolated, and corrective actions are taken to improve
the process.
STANDARD COST:A measure of how much one unit of
product or services should cost to produce or deliver. Standard
cost may be established using careful analysis of the product or
service and the materials and processes used to create it. If
established in this manner, standard costs may be thought of as
ideal costs, and actual costs may differ from these costs because
of actual price differences, errors or mistakes, or changed
conditions from the ideal.
SUPPLY CHAIN: The supply chain denotes the route of products
from raw material to the ultimate consumer as well as the details of
that route such as cost, time, transportation, packaging, etc. It may
involve two or three levels of suppliers, one or more OEM plants, a
distribution system, spare and replacement parts flow, and disposal
and recycling process.
T
T&E:
TERMINAL VALUE:
TOOLING: Tooling and dies refer to hardware that is
developed specifically for a part so that a when that tool or die is
inserted into a general-purpose machine, that machine will produce or
shape that part uniquely. Tool and die makers design and make tooling
and dies. The two terms are almost synonyms. Engineers or tool designers
design tools and dies. Examples of tools and dies are:
- Molds that are used in plastic injection molding machines to make
everything from plastic cups to complex plastic parts for industrial
or commercial use
- Tool steel dies designed for hydraulic and mechanical presses so that
a flat piece of steel or other metal can be formed into such products
as fenders, CRT enclosures, or cooking ware
- Templates used for printing, painting, and lithography
- A set of patterns for cutting cloth or leather
- Digital data that guide a general purpose machine in its cutting of
materials
- Cookie and bread molds for cooking
- A metal stamp that embosses the figures on a coin blank
- Camera-ready copy of a manuscript to be published
TQC:
TQM:
TURNS: Commonly thought of as inventory turns or
turnover ratio, turns are defined as the ratio of throughput to
average inventory. A high number of turns imply that little
inventory is kept on hand and/or materials are received in small
lots.
U
UNION CONTRACT
UNION FREE
UNION SHOP: A facility in which hourly employees are
unionized, or more formally a clause in a collective bargaining
agreement under which membership in the union is required as a
condition of employment.
UTILITIES
V
VALUE ADDED: Denotes the "value" added to the materials
received by a plant in the plants operations. Usually a percentage of
COS. Value added can be a combination of true value and the non-value
added work done in manufacturing a product. Best practice requires a
plant to continually assess which of its activities is true value added
and eliminate or reduce the non-value added activities. This assessment
can be complex, however. There is a gray area in determining what are
the direct materials. There is no confusion on direct materials that
are part of the bill of materials. The uncertainty is in the indirect
materials some of which could be included in the bill of material. For
example, adhesives and lubricants are generally bought in bulk and used
as needed with the amounts not accurately specified in the bills. For
most plants, these items are small compared with other costs.
VARIANCE:
VENDING MACHINE MATERIAL CONTROL: Soft drink and snack suppliers
to a plant replenish the previous day's employee purchases each day.
They do not forecast demand in any formal way; they stock their delivery
trucks with products that have been selling plus maybe some new, more
inticing snacks. Plants can use this philosophy to have many types of
production material stocked. Suppliers come to the plant daily and replenish
bins from which material has been used the previous day. They do not
forecast nor know except from recent historical data what the usage
will be. Such parts are usually standard ones such as fasteners.
VISUAL MANAGEMENT:
VOLUNTARY LAYOFF:
W
WARRANTY:
WELDING:
WELLNESS
WORKFORCE:
WORK TEAMS
WORK IN PROCESS: Inventory consisting of products that
are in a semifinished state. Work in process inventory is valued
at the cost of the purchased material plus the cost of
manufacturing up to the stage of completion at the time that the
inventory is valued.
WORKING CAPITAL: In a manufacturing operation, working capital
generally refers to inventory plus accounts receivable minus accounts
payable. These are the dominant requirements for cash in a plant in
addition to payroll and property, plant, and equipment.
For a company, the accounting definition of working capital is current
assets minus the current liability. This definition refers to the working
capital that the company has. From a manufacturing perspective, the
working capital requirement to run the operations is what is important.
This allows a forecast of the cash required to produce a new order,
to negotiate with suppliers and customer on payment terms, and to communicate
with corporate treasury functions on the cash needed so that it can
be lined up from banks or investors. For this purpose, working capital
is current assets minus cash minus current liabilities plus the current
portion of debt.
The difference is analogous to the difference between price and cost.
The price is the monies you get from the customer. The cost is what
monies are needed to produce the product. The difference is margin.
Price can vary greatly depending on market conditions. Production cost
is a less volatile measure that should be know with some accuracy in
order to price. Operational reviews are always about operating costs
and working capital as defined above.
Another analogy is the cash you may take on a trip. The operational
working capital is that amount needed to complete the trip without running
out of money. The monies that you take are usually significantly larger
than this amount either by credit cards or cash. Thus, the accounting
working capital that you have is the limit on your credit cards plus
your cash. The operational working capital is the amount you actually
need for the trip.
WORKMAN'S COMP
X
Y
Z
Misc.
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