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capacity
the upper limit or ceiling (maximum) on the load that an operating unit can handle; ex. # of bicycles produced per hour or # of computer upgrader per hour; need include equipment, space, & employee skills
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design capacity
the maximum output rate or service capacity an operation, process, or facility is designed for; what it was made to produce under ideal conditions
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effective capacity
design capacity minus allowances, such as personal time, maintenance, and scrap; ex. lunch & coffee breaks; increase by correcting quality problems, keep equipment in good condition, & fully train employees
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leading strategy
build capacity in anticipation of future demand increases
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following strategy
build capacity in response to demand exceeding current capacity
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tracking strategy
build capacity in response to and at pace with increasing demand, but in relatively small increments
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capacity cushion
extra capacity used to offset demand uncertainty; amount in excess of expected demand; capacity - expected demand equals this; greater uncertainty, greater this needs to be
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bottleneck operation
an operation in a sequence of operations whose capacity is lower than that of the other operations; evidence of an unbalanced system; reduces capacity of the system
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economies of scale
if the output rate is less than the optimal level, increasing the output rate results in decreasing average unit costs; ex. standardization reduces unit costs
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diseconomies of scale
if the output rate is more than the optimal level, increasing the output rate results in increasing average unit costs; can be from worker fatigue, equipment breakdowns, the loss of flexibility
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constraint
something that limits the performance of a process or system in achieving its goals; market (insufficient demand), resource (too little of workers, equipment, space, etc.), material (too little of them), financial (insufficient funds), supplier (unreliable), knowledge/competency (missing or incomplete skills), & policy (interference of laws & regulations
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break-even point (BEP)
the volume output at which total cost and total revenue are equal; no loss, no gain
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operations management
the management of systems or processes that create goods and/or provide services
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systems (and the systems approach)
a set of interrelated parts that must work together; a bus. org. is composed of marketing, operations, & finance subsystems; emphasizes interrelationships among subsystems; the whole is greater than the sum of its parts; outputs & objectives of the organization more important than any one subsystem
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process
one or more actions that transform inputs into outputs
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Who is the father of scientific management?
Frederick Winslow Taylor
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Who employed scientific management techniques to his factories, such as moving assembly line and mass production
Henry Ford
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mass production
system in which low-skilled workers use specialized and often costly machinery to produce high volumes of standardized goods
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competitiveness
the effectiveness of an organization in the marketplace relative to other organizations that offer similar products/services
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strategy
the plan/map that determines how an organization pursues it's goals; basic businesses ones are low cost, responsiveness, and differentiation
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order qualifiers
characteristics that customers perceive as minimum standards of acceptability for a product or service to be considered as a potential for purchase; necessary for me to even consider purchasing needs
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order winners
characteristics of an organization's goods or services that cause it to be perceived as better than competition; wants
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productivity
a measure of the effective use of resources, usually expressed as the ratio output to input; a direct impact on competitiveness; makes higher standards of living (you can do more with less), its a competitive advantage in the marketplace, & it makes things less likely to be replaced/removed; tracks performance over time
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value added
the difference between the cost of inputs and the value or price of outputs; for non-profit orgs. its their value to society; for profit orgs. its measured by the prices customers are willing to pay for goods/services; firms use profits to invest in R&D, new facilities & equipment, and workers salaries
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maufacturability
the capability of an organization to produce an item at an acceptable profit
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serviceability
the capability of an organization to provide a service at an acceptable cost or profit
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reverse engineering
dismantling and inspecting a competitors product to discover product improvements
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product liability
the responsibility a manufacturer has for any injuries or damages caused by a faulty product; companies can lose reputation, customers, and loyalty
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cradle-to-grave assessment (Life-Cycle assessment, LCA)
the evaluation of the environmental impact of a product or service throughout its useful life; factors like global warming, oxygen depletion, and solid waste generation
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value analysis
examining the function of parts and material to reduce cost and/or improve performance; reduce of the 3 R's
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remanufacturing
refurbishing used products by replacing worn-out or defective components and reselling them; reuse of the 3 R's
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mass customization
a strategy of producing basically standardized goods or services, but incorporating some degree of customization in the final product or service; individuality, cost may take longer to receive
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delayed differentiation
the process of producing, but not quite completing a product or service until customer preferences are known; one way to provide mass customization; products still basically standardized; postponement tactic; hold in inventory; quickly add customers choice and speedy delivery
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modular design
component parts are grouped into modules that are easily replaced or interchanged; second way to provide mass customization; easier & simpler to diagnosis & remedy failure, repair & replacement, & quick manufacture & assembly; there's a limited # of possible product configurations (low variety); to repair a faulty module the entire module must often be scrapped (higher cost)
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reliability
consistently; the ability of a product, part, or system to perform its intended function under a prescribed set of conditions
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robust design
results in products or services that can function over a broad range of conditions
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concurrent engineering
bringing engineering design and manufacturing personnel together early in the design phase; marketing, engineering, and operations working all at one time and together; departments are communicating
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