Term
| What are the advantages of learning curves (3) |
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Definition
1)Less costs,
2) Create a competitive advantage,
3) Make better processes |
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Term
| What are some uses in of learning curves on the job (2) |
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Definition
| Repetitive tasks such as construction work, negotiations |
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Term
| When are learning curves not useful? |
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Definition
| When production is sporadic or requires knowledge |
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Term
| Characteristics of a learning curve on a graph (3) |
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Definition
1) They follow a negative exponential distribution,
2) rate of improvement decreases over time,
3) follows a scallop effect where there are short bursts of learning |
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Term
| What are some limitations for learning curves when being used in a practical sense (4) |
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Definition
They are company specific and you can't really compare, they are based on time so they must be accurate,
changes in work place such as workers leaving affects it,
indirect materials and labour are not factored into it
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Term
| What are some examples of metrics of quality? (2) |
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Definition
Customer satisfaction,
performance levels |
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Term
| Consequences of poor quality (4) |
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Definition
Losing business,
liability (insurance required),
less productivity,
higher costs |
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Term
| What are some benefits of quality? (6) |
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Definition
Better reputation,
higher pricing and profit,
more market share,
more customer loyalty,
fewer production problems,
less liability |
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Term
| Who is responsible for quality? |
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Definition
| Everyone, if one person messes up then it gets ruined |
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Term
| What are the key dimensions of quality and use examples or definitions (9) |
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Definition
1) Performance - WIND
2) Features - acessories
3) Reliability - time put into testing
4) Conformance - McD is standardized
5) Durability - last long
6) Serviceability - easy of repair
7) Aesthetics - Good looking dinner plate
8) Perceived quality - $100 cake vs $20 cake
9) Value - add more stuff, buffet = value |
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Term
| What are the costs of quality? (4) |
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Definition
Prevention costs - reduction of defects (knife that cuts not saws),
appraisal costs - evaluate products (drink some samples of wine),
internal failure - producing a defect before delivery (Samsung G7)
external costs - defects after delivery (ppl will destroy your company) |
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Term
| If a product is defective what will people demand? what are some counter measures to this? |
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Definition
A refund plus a little more due to a hidden oppourtunity cost of them losing time,
counter measure would be to offer them stuff that costs you $0 like free bread |
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Term
| How does quality improve productivity through the methods (the 2 common ones) of increasing profit? (6) |
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Definition
Through more sales,
-more rep.
-flexible prices
-more response
Through lower costs,
-more productive
-lower scrap costs
-lower warranty costs |
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Term
| What is total quality management? |
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Definition
| It is the process of getting everyone in the organization on board with making quality good |
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Term
| What is (1) example of quality not creating profitability? |
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Definition
| 1) Dollarama - cheap items that no one will return |
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Term
| What are the elements of total quality management? (4) |
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Definition
Management's commitment,
customer involvement (they tell you whats wrong),
re-design products,
re-design processes |
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Term
| What are the ways that you can design a product for a certain attribute of quality? (3) |
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Definition
1) Design for robustness - works even in bad conditions
2) Design for manufacturability - easy assembly, few parts
3) Design for reliability - manufacture close to tolerances |
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Term
| Service operations are difficult to measure and have/require (4) |
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Definition
1) Intanglible goods
2) Intangible expectations
3) Less standardized processes (important to design a good process)
4) Must be able to adapt to any situation |
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Term
| What are the determinants of service quality? (10) |
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Definition
1) Reliability
2) Responsiveness
3) Access
4) Competence
5) Courtesy
6) Communication
7) Credibility
8) Security
9) Knowing the customer
10) Tangibles - physical evidence |
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Term
| How should you treat suppliers? |
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Definition
| Treat them well, build a relationship by paying bills on time because they are important to your company |
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Term
| What are the ISO 9000 and 14000 series about and what are some elements? (5) |
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Definition
They are about international quality standards.
1) Environment management
2) Auditing
3) Performance evaluation
4) Labelling
5) Life cycle assessment |
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Term
| General idea behind Deming's points summarized up? (3) |
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Definition
1) Promote change and continuous improvement
2) Break barriers that may decrease productivity
3) Be supportive and help everyone to become better |
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Term
| What is Six Sigma? Who created it? |
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Definition
It is a set of principles that implements a strategy to reduce the number of defects.
It operates at 6 standard deviations away from the mean.
Motorola was the first to use this. |
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Term
| What is a quality circle? |
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Definition
| Group of employees who meet to solve problems |
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Term
| Methods of empowering employees in an organization (5) |
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Definition
1) Build communication networks
2) Get good supervisors
3) Give more responsbility
4) More morale
5) Make a formal team |
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Term
| What is Just in Time (JIT), what are the advantages (3) and what is the ONE major disadvantage |
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Definition
Just in time is getting the inventory as an order comes in.
1) Reduced cost or quality
2) More quality
3) Reduced inventory
1) It may leave you vulnerable in the event that demand increases |
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Term
| What are the taguchi concepts (3) and what do they do? |
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Definition
1) Quality robustness - able to produce in bad conditions
2) Quality loss function
3) Target-oriented quality |
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Term
| What are the best places to inspect? (3) |
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Definition
1) When you start producing, so inspect the inputs
2) When you are about to deliver, so make sure no defects
3) When you are about to make an irreversible or expensive operation |
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Term
| What does quality control mean? |
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Definition
| Activity that evaluates quality characteristics relative to a standard and takes action when quality does not meet the standard |
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Term
| What is an optimal cost of inspection to have? |
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Definition
| When the cost of inspection curve intersects the cost of passing defectives curve |
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Term
| What are the types of variation (2) and gives examples for them |
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Definition
1) Random variation - natural variations that can't be controlled(mahogany wood will always be random shades of mahogany)
2) Assignable variation - variation where you can put the blame on someone(black paint instead of white paint means someone screwed up) |
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Term
| What is a control chart and how does it behave? What are control limits? |
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Definition
A control chart is made in order to differentiate between random and assignable variation.
It is able to tell outliers because there is a UCL and LCL which contains all acceptable variations. The control limits are the outliers which are the random variations. |
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Term
| What are sample mean and sample range charts and how are they depicted? |
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Definition
Sample mean charts are x bar charts which monitor the mean of processes
Sampel range charts are R charts which monitor the dispersion of processes |
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Term
| What are two types of control charts used for attributes (2) |
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Definition
p-Chart - used to monitor proportion of defectives, is based on pass/fail and multiple samples
c-Chart - used to monitor the number of defectives, is based on when defects can be reasonably counted |
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Term
| What are some elements of process capabilities? (3) |
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Definition
1) Design specifications - range of acceptable values
2) Process variability - natural variation
3) Process Capability - the variation in relation to specifications |
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Term
| What are some ways to improve Process Capability? (5) |
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Definition
1) Simplify
2) Standardize
3) Mistake-proof
4) Upgrade equipment
5) Automate |
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Term
| What is the step by step process to evaluating a statistical process control? (6) |
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Definition
1) Define
2) Measure
3) Compare to standard
4) Evaluate
5) Correct action
6) Re-evaluate |
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Term
What is the simple supply chain process? (3)
What must be present throughout the ENTIRE process? |
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Definition
1) Start off with purchasing your source of materials
2) Start production and make products
3) Distribute and deliver products to customers
Information must be present and continuously passed in order to effectively conduct the supply chain process. |
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Term
| What are some key factors to effective Supply Chain Management (SCM)? (4) |
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Definition
1) Information
2) Communication
3) Co-operation
4) Trust |
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Term
| What is a major objective of SCM? |
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Definition
| Responding to uncertain demand from customers and making sure no excess inventory |
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Term
| What are some common factors that contribute to uncertainty? (5) |
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Definition
1) Inaccurate demand forecasts
2) Late or incomplete deliveries
3) Product and price changes
4) Batch orders
5) Inflated orders |
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Term
| Why is there a need for SCM and what does it provide? (5) |
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Definition
1) More competition
2) More outsourcing
3) More globalization
4) More e-commerce
5) Bullwhip effect - manage inventories |
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Term
| What is the bullwhip effect, explain it for both front and back ends. |
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Definition
| A bullwhip effect occurs when a customer doesn't want to buy (injury?) and a retailer stops ordering, this effect gets larger until it gets to the supplier. The opposite can also be done and the supplier will suffer an exponential effect compared to the retailer. |
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Term
| What does risk pooling mean? |
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Definition
| Combining your safety stocks in one location rather then multiples locations |
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Term
| What are the softwares related to Management Information Systems (MIS)? (2) |
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Definition
1) Planning software - designs the network and production
2) Execution software - used for management purposes throughout the production process |
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Term
| When should you go "green"? How can it be helpful? |
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Definition
Go green if there are no extra costs associated with it or if you save money.
It improves sustainability and reputation |
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Term
| What are some useful tools that Information Technology provides for supply chain? (5) |
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Definition
1) E-business
2) Electronic data interchange (EDI) - exchange info
3) Barcodes - useful for sales
4) Radio-frequency identification (RFID) - send information of a product via radio waves
5) Built-to-order (BTO) - direct sell on internet, no inventory lying around |
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Term
What are the elements of supply chain integration?
What can it help to reduce? |
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Definition
1) Share information among supply-chain members
2) Collaborate planning, forecasting and design
3) Co-ordinate the work flow and production
4) Adopt new models and technology
This can help to reduce the bullwhip effect. |
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Term
| What consitutes a successful supply chain? (4) |
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Definition
1) Trust
2) Effective communcation
3) Performance metrics - costs, delivery, flexibility
4) Ease of access |
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Term
| What are the duties of purchasing? (6) |
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Definition
1) Identify sources of supply
2) Negotiate contract
3) Maintain communication
4) Establish relationships
5) Manage supplies
6) Obtain goods and services
INMEMO |
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Term
| What are some benefits of outsourcing? (4) What is the one disadvantage? |
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Definition
1) Less costs
2) More flexible
3) More capacity
4) Gain more expertise
The disadvantage is loss of control |
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Term
| What is the goal of value analysis? |
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Definition
| To recommend ways to use different materials, reduce costs and increase productivity and profit. |
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Term
| What are the ways that you can get a solid price for your product? (3) |
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Definition
1) Competitive bidding
2) Published price lists
3) Negotiations |
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Term
| What is the difference between centralized and decentralized purchasing? |
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Definition
Centralized means that the purchasing is taken care of by one department
Decentralized means it is taken care of by individual departments |
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Term
| What does the spend analysis hope to accomplish? |
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Definition
Identify the expenditure data and then reduce costs and improve efficiency.
It provides answer to many questions such as,
what was bought, who was supplier, etc. |
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Term
| What does logistics means and what does it do? |
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Definition
It is the transportation and warehousing portion of the process.
It involves the flow of materials and products |
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Term
| What are the types of Inventories that a manufacturer may have? (4) |
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Definition
1) Raw materials
2) Work in process (WIP)
3) Finished goods
4) Spare tools and supplies |
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Term
| How can you take advantage of having inventory? (5) |
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Definition
1) Protect against stock out
2) Quality discounts
3) Smooth production requirements
4) Decouple operations
5) Hedge against price increases
6) Always something to work on |
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Term
| What is the Fill Rate and Inventory Turnover? |
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Definition
The fill rate is the level of customer service.
The inventory turnover is the amount of shelf life the inventory has during one cycle. |
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Term
| What constitutes good inventory control management? (4) |
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Definition
1) Forecasts of demand
2) Lead time knowledge
3) Estimates of costs (hold, order, shortage)
4) Classification and tracking systems |
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Term
| What are some warehouse and storeroom concerns? (3) |
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Definition
1) Security
2) Safety
3) Obsolescence |
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Term
| What are some inventory replenishment tools and systems? (4) |
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Definition
1) Fixed point/reorder model - reorder new stuff when inventory drops below a fixed point
2) Two-bin system - replenish when one bin is empty
3) Barcodes
4) RFID (Radio frequency identification) |
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Term
| What are some costs associated with goods for sale? (5) |
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Definition
1) Purchasing costs
2) Ordering costs
3) Carrying costs
4) Stockout costs
5) Quality costs (4 types) |
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Term
| When an order is received and processed when your inventory is at a low amount, what does it mean? |
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Definition
| Your supplier relationship is bad. |
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Term
What is the difference between independant and dependant demand?
Which one is certain? |
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Definition
Independant demand is the demand for the final product.
Dependant demand is the demand for all other parts and components
Dependant demand is certain, independant demand is uncertain. |
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Term
| What are some of the costs associated with holding inventory? (3) |
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Definition
1) Order/set-up costs
2) Holding/carrying costs
3) Shortage costs |
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Term
What is the ABC Classification system used for?
What is the significance of the letters A, B and C? (3) |
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Definition
It is used to organize inventory according to some measure of importance and volume
A- Very important
B- Moderately important
C- Not very important |
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Term
| What are some assumptions of EoQ? (7) |
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Definition
1) Only order/carry costs
2) Same quantity ordered every time
3) Details known with certainty
4) No discounts
5) One product
6) Demand is known and consistent
7) Lead times are the same with single deliveries |
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Term
| On the EoQ curve, when the total cost curve is at it's minimum what is occuring? |
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Definition
| The carrying and order costs are equal |
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Term
| What are some EoQ elements of when to reorder? (3) |
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Definition
1) Re-order point - When the quantity hits this point, you order more products
2) Safety Stock - stock that is held in excess in case demand unexpectedly rises
3) Service level - Probability that demand won't exceed supply during the lead time |
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Term
| What are the important cautions regarding EoQ? (2) |
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Definition
1) Exclude sunk costs
2) Very small values may not be valid |
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Term
What are some benefits of fixed-order intervals? (3)
What are some disadvantages? (3) |
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Definition
1) Tight control of items
2) Possible savings in costs
3) Practical when inventory can't be monitored
1) Requires large safety stock
2) Increased carrying cost
3) Cost of periodic reviews |
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Term
| What is the single period model and what are the types of stocking levels? (2) |
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Definition
The single period model is used for ordering items with limited useful lives
1) Continuous stocking - determines optimal level of stock
2) Discrete stocking - meets or exceeds level of service required |
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Term
What is Shortage cost?
What is Excess cost? |
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Definition
Shortage cost is the unrealized profits per unit
Excess cost is the different between purchase cost and salvage value |
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Term
What is the too much inventory strategy?
What is the wise inventory strategy? |
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Definition
Too much inventory is having too much = lotta problems but living with the problems, costs a lot to maintain this
Wise inventory is having few safety stocks and small lots, instead being smart about inventory, can be risky. |
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Term
| What are the types of maintenance? (2) |
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Definition
1) Breakdown maintenance - Reactive approach, deal with it when it happens
2) Preventive maintenance - Proactive approach, periodically monitor and fix stuff |
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Term
| What are some benefits of maintenance? (4) |
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Definition
1) Avoid disruption
2) No excess production costs
3) Maintain quality
4) Avoid missed delivery |
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Term
| What are some consequences of breakdown? (3) |
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Definition
1) Production capacity reduced or no production
2) Quality issues
3) Safety issues
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Term
What is predictive maintenance and what is the goal?
What is autonomous maintenance?
Why is autonomous maintenance bad and who should take do it? |
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Definition
An attempt to determine when its best to perform maintenance. The goal is to balance costs.
Get the worker to do maintenance when they think it is the right time.
This is bad because they can hold you liable, better to get a professional to do maintenance since you can hold them liable.
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Term
| What is lean production and what might it be referred to as? |
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Definition
It is a philosophy of waste reduction and continuous improvement.
It is sometimes referred to as JIT. |
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Term
| What are some trade-off decisions when considering replacement? (4) |
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Definition
1) Cost of repair vs replace
2) Possible disruptions
3) Teaching employees again
4) Demand forecasts may require more capacity |
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Term
What is Reliability Centered Maintenance (RCM)?
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Definition
| Making efforts to analyze the reasons behind defects and create new equipment that won't fall prey to the same defect. |
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Term
| When is group replacement good? |
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Definition
| When there are labour cost savings of replacing all part together. |
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Term
| What are some policies that must be taken with ABC Analysis? (3) |
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Definition
1) Record accuracy
2) Cycle counting - eliminates inefficiency
3) Control of service inventories - good personnel, know when stuff is coming in, going out |
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Term
What is total productive maintenance (TPM)?
What are some elements involved with it? (4) |
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Definition
It is using autonomous maintenance and attempts to reduce variability with strategic views of total quality management.
1) Proper design
2) Emphasize costs
3) Develop plans
4) Train operators |
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Term
What are some techniques for enhancing maintenance? (3)
What do they all involve? |
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Definition
1) Simulation
2) Expert systems
3) Automated sensors
They all use computer software. |
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