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3 types of goods and services |
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Make-to-order, Assemble-to order, Make-to-stock |
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aka Custom, custom products, one of a kind, ex wedding, suits, surgery |
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aka Option, parts are finished, but not put together, ex dell computers, subway sandwich |
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aka Standard, goods and services made for everyone, generally by machine, ex shoes, credit cards, soap |
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Projects, Job shop processes, Flow shop, Continuous flow |
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large-scale, one time tasks such as complex, custome jewelry, airplanes |
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equipment for product or service is separated into areas based on their specific task, ex hospital has xray room, surgery room, and waiting room |
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an assembly line used to make a variety of similar goods, ex automobiles, appliances, insurance policies |
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very standardized goods and services that are made constantly in high volumes ex, gasoline, soda, chips |
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for order processes: used to determine if tasks add value or not, value adding tasks are determined by the customer |
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Value stream calculations |
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Time= value adding tasks + nonvalue adding, Cost = value adding costs + nonvalue adding |
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throughput * flow time to explain work in process relationship between units made over time |
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output rate of process, ex 100 units/hours |
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work activity that limits throughput of the entire process, ex preparing side dishes slows down process |
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management of all activities that facilitate the fulfillment of a customer order for a manufactured good |
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3 views of value/supply chains |
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Definition
Input/Output View, Pre and Post Services View, Typical Goods-Producing Supply Chain Structure |
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Definition
supplier to consumer (what goes in to make the product and what comes out) |
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Pre and Post services view |
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Definition
gaining a customer and keeping the customer (before and after product) |
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Typical Goods-Producing supply chain structure |
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supplier to manufacturer to consumer |
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SCOR (Supply Chain Operations Reference Model) |
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Definition
1) Plan, 2) Source, 3) Make, 4) Deliver, 5) Return |
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Definition
firm specializes in certain types of goods-producing activities, such as customized design or manufacturing |
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EMS (Electronic Manufacturing System) |
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Definition
term used for companies that design services for electronic components of a product |
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Definition
delaying product customization until product is closer to customre at the end of the supply chain |
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process of managing geographically dispersed service-providing facilities |
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Definition
managing the flow of finished goods that may be unusable or discarded through the supply chain from customers aka returns |
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Sustainable supply chains |
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Definition
green supply chain that uses environmentally friendly inputs |
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order amplification in the supply chain where each member of a supply chain "orders up" to buffer their own inventory ex. Diapers at walmart |
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4 main locations for supply chains |
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Definition
global, regional, community, local |
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Definition
best place to place a warehouse using X and Y coordinates, and remember there are limitations ex. Mountain, ocean, railroad |
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efficient distribution system allowing a company to operate with lower inventory levels |
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VMI (Vendor Managed Inventory) |
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Definition
becoming popular where the seller manages inventory for the customer and tells the supplier |
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production volume of a manufacturer over a certain time period determined by resources |
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Short term ex have overtime, increase number of on call workers, Long term ex construct a new plant, expand number of branches |
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average unit cost of a good decreases as the volume of sales increases |
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average cost of a good increases as the volume of sales increases |
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to achieve economies of scale without extensive investments by focusing on narrow range of goods or target market segments |
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aka Capacity Cushion, is the amount of capacity reserved for unanticipated events |
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Percent = 100% - Average resource utilization % |
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seasonal products should have complementary products to sell during off seasons |
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Short term capacity adjustments |
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change labor capacity and schedules, hire more/overtime |
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TOC (Theory of Constraints) |
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principles used to increase total process maximization by constantly using all bottleneck stations |
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amount of money generated per time period in sales |
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anything that limits an organization from moving forward |
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associated with the capacity ex machine or employee |
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limits capacity for entire process of a product |
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CPFR (Collaborative Planning, Forecasting, and Replenishment) |
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Definition
sharing info with a selling company ex, Colgate does a promotion and tells Walmart so they know to order more products earlier |
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length of time where a forecast is based, short range are more accurate than long range because there are less variables |
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1) Trend, 2) Seasonal patterns, 3) Cyclical patterns, 4)/5) Random variation or noise and one time variation or error |
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aka Noise, unexplained deviation of a time series or trend because forecasts are never accurate |
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one time variation that is explainable, ex hurricane causes increase in demand for food and water |
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Judgemental forecasting (Qualitative) |
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relies on opinions and expertise of forecasts when no historical data is available |
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forecasting through expert opinion by getting a bunch of experts to talk about ideas individually |
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sample size is larger than delphi method but is costly |
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Statistical forecasting (Quantitative) |
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using numbers to assume that the future is correlated to the past |
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MAPE (Mean Absolute Percentage Error) |
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dividing absolute error by time series data to make it easier to interpret (a percentage of error) |
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method to quantiy bias by getting the average absolute deviation (MAD) |
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planning and controlling everything that affects creating, storing, and transporting products |
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Primary fuctions of inventory |
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Definition
to have enough for demand and not lose profits while they are not available |
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partially finished goods in various stages of completion |
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MRO (Maintenance, Repair, and Operating |
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supplies used in operations but not part of finished goods |
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inventory resulted from purchasing larger quantities than needed for immediate sale (normally high turnover products) |
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costs to place an order/cost to prepare machines |
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Inventory-holding/carrying costs |
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both are same: cost of storing inventory (price of units not being used) |
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demand for a product SKU (individual product) which is unrelated to demand of other SKUs (individual products) |
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demand of one product is directly related to demand of another ex, tires to a car |
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ABC inventory (80/20 rule or Pareto) |
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Definition
used to check on-hand inventory and sales of each item: A items sell for a lot but few are sold ex, car 20% of product but 80% of profit, C items sell for low prices but in large numbers 80% of product but 20% of profit |
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Definition
when inventory falls below a certain value, a new order is automatically placed, sometimes by using the "average demand during the lead time" |
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EOQ (Economic Order Quantity) Model |
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Definition
determines order size to minimize annual total cost: setup costs + carrying costs, but must meet all 8 assumptions |
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constantly checking inventory ex, 7-11 |
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checking invnetory at specific points in time- higher chance of going out of stock, theft, etc |
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all products go to a warehouse from suppliers to be separated and redistributed to various locations |
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specific arrangement of physical facilities used to minimize delay, maintain flexibility, use labor and space effectively |
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aka Auto Assembly Line, arrangement based on sequence of operations, ex credit card processing, subway shops, auto assembly lines |
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aka Job Shop, grouping equipment or activities that do similar work |
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Definition
aka Flexible Manufacturing Systems, grouping equipment together by the need for a set of equipment ex, need for a legal group: labor law, bankruptcy, divorce |
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aka Project, uses resources needed o make a good in one location (normally location it needs to be used) |
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when a work center completes a unit but cannot release it because the in process storage at the next stage is full (first operation is faster than second) |
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when one stage completes work and no unit from previous stage is awaiting processing (second operation is faster in production than first) |
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grouping tasks among workstations so each workstation has the same amount of work, to minimize idle time |
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interval between two successive outputs, A/R (available time to produce output/output or demand forecast in units) but A and R need the same units of measure* |
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longest task time out of all operations |
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must be taken into consideration: longest task time first (because shortest task time is easier to fit in a line), and shortest task time first (so that idle time is minimized) |
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to give more workers responsibility |
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Definition
process layout software program in textbook |
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Reducing number of work stations in an assembly line while maintaining desired output rate |
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Definition
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Term
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Definition
management of all activities that facilitate the fulfillment of a customer order for a manufactured good |
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|
Term
3 views of value/supply chains |
|
Definition
Input/Output View, Pre and Post Services View, Typical Goods-Producing Supply Chain Structure |
|
|
Term
|
Definition
supplier to consumer (what goes in to make the product and what comes out) |
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|
Term
Pre and Post services view |
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Definition
gaining a customer and keeping the customer (before and after product) |
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|
Term
Typical Goods-Producing supply chain structure |
|
Definition
supplier to manufacturer to consumer |
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Term
SCOR (Supply Chain Operations Reference Model) |
|
Definition
1) Plan, 2) Source, 3) Make, 4) Deliver, 5) Return |
|
|
Term
|
Definition
firm specializes in certain types of goods-producing activities, such as customized design or manufacturing |
|
|
Term
EMS (Electronic Manufacturing System) |
|
Definition
term used for companies that design services for electronic components of a product |
|
|
Term
|
Definition
delaying product customization until product is closer to customre at the end of the supply chain |
|
|
Term
|
Definition
process of managing geographically dispersed service-providing facilities |
|
|
Term
|
Definition
managing the flow of finished goods that may be unusable or discarded through the supply chain from customers aka returns |
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Term
Sustainable supply chains |
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Definition
green supply chain that uses environmentally friendly inputs |
|
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Term
|
Definition
order amplification in the supply chain where each member of a supply chain "orders up" to buffer their own inventory ex. Diapers at walmart |
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Term
4 main locations for supply chains |
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Definition
global, regional, community, local |
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Term
|
Definition
best place to place a warehouse using X and Y coordinates, and remember there are limitations ex. Mountain, ocean, railroad |
|
|
Term
|
Definition
efficient distribution system allowing a company to operate with lower inventory levels |
|
|
Term
VMI (Vendor Managed Inventory) |
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Definition
becoming popular where the seller manages inventory for the customer and tells the supplier |
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