DCSI 304 Final Exam Review – Flashcards
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- What is operations management:
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Activities that relate to the creation of goods and services through the translation of inputs to outputs
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- A global view of operations and supply chain
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improve supply chain, reduce costs, improve operations, understand markets, improve products and attract and retain global talent
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- Developing missions and strategies:
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differentiation, cost leadership and response
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- Strategic planning, core competencies, and outsourcing: half of all outsourcing fails due to... potential risks include:
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Immediate rivals, potential entrants, customers, suppliers and substitute products
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- The importance of project management:
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planning, scheduling and controlling
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- Project scheduling: generally what a ghant chart is:
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planning chart used to schedule resources and allocate time. 4 purposes: it shows the relationship of each activity to others and to the whole project, it identifies the precedence relationships among activities, it encourages the setting of realistic time an cost estimates for each activity and it help make better use of people, money, material resources by identifying critical bottlenecks I nthe project
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PERT:
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Program evaluation and review technique. A project management technique that employs three time estimates for each activity
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- CPM:
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Critical path method. A project management technique that used only one estimate per activity
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- Critical path:
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The computed LONGEST time path through a network
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- What is forecasting?
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The art and science of predicting future events
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- Economic:
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Planning indicators that are valuable in helping organizations prepare medium to long-range forecasts
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- Demand:
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Projections of a company's sales for each time period in the planning horizon
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- Technological:
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Long-term forecasts concerned with the rates of technological progress
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- Quantitative:
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Forecasts that employ mathematical modeling to forecast demand
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- Qualitative:
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Forecasts that incorporate such factors as the decision marker's intuition, emotions, personal experiences and value system
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- Linear-regression analysis:
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A straight-line mathematical model to describe the functional relationships between independent and dependent variables
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- Standard error of the estimate:
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A measure of variability around the regression line
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- Coefficient of correlation:
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A measure of the strength of the relationship between two variables
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- Coefficient of determination:
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A measure of the amount of variation in the dependent variable about its mean that is explained by the regression equations
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- Multiple regression:
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An associative forecasting method with >1 independent variable
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- Goods and services selection objective:
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To develop and implement a product strategy that meets the demand of the marketplace with a competitive advantage
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- Product decision:
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The selection, definition and design of products. The four phases of the product life cycle are introduction, growth, maturity and decline
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- Product development, quality function deployment:
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A process for determining customer requirements and translating them into attributes that each functional area can understand and act on
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- Manufacture ability and value engineering:
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Activities that help improve a product's design, production, maintainability and use-
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- Decision trees:
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?
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- Quality:
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The ability of a product or service to meet customers needs
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- American society for quality:
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Defines quality as the totality of feature and characteristics of a product or service that bears on its ability to satisfy stated or implied needs
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- ASQ does this? True or false
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?
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- Total quality management, six sigma:
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A program to save time, improve quality and lower costs. It describes a process, product or service with an extremely high capability
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- Roll of inspection:
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A means of ensuring that an operation is producing at the quality level expected
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- Source inspection:
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Controlling or monitoring at the point of production or purchase: at the source
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- Attribute inspection:
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An inspection that classifies items as being either good or defective
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- 4 process strategies:
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The objective of the process strategy is to build a production process that meets customer requirements and product specifications within cost and other managerial constraints
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- 5 tools of process analysis:
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Flowcharts, time-function mapping, value-stream mapping, process charts and service blueprinting
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- Service blueprinting:
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A process analysis technique that lends itself to a focus on the customer and the provider's interaction with the customer
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- Strategic importance of location:
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The objective of location strategy is to maximize the benefits of location to the firm
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- For industrial location decisions:
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The location strategy is usually minimizing costs
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- For retail and professional service organizations:
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the strategy focuses on maximizing revenue
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- Warehouse location strategy:
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May be driven by a combination of cost and speed of delivery
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- Intangible costs:
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A category of location costs that cannot be easily quantified, such as quality of life and government
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- Methods of evaluation location alternatives:
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1) develop a list of relevant factor called key success factors 2) assign a weight to each factor to reflect its relative importance in the company's objectives 3) develop a scale for each factor 4) have management score each location for each factor 5) multiply the score by the weight for each factor and total the score for each location 6) make a recommendation based on the maximum point score, considering the results of other quantitative approaches as well
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- Types of layout:
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1) office: locate workers requiring frequent contact closest to one another 2) retail: expose customers to high-margin items 3) warehouse balance low-cost storage with low-cost material handling 4) fixed-position: move material to the limited storage areas around the site 5) process-oriented: manage varied material flow for each product 6) work-cell: identify a product family, build teams and cross train team members 7) product-oriented: equalize the task time at each workstation
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- Human resource strategy for competitive advantage:
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Is to manage labor and design jobs so people are effectively and efficiently utilized
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- Job design:
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Specifies the tasks that constitute a job for an individual or group
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- Flow diagram:
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A drawing used to analyze movement of people or material
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- Labor standards:
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The amount of time required to perform a job or part of a job. Set in 4 ways: 1) historical experience 2) time studies 3) predetermined time standards 4) work sampling
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- Differences between PERT and CPM:
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PERT employs three estimates for each activity
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- 3 major types of forecasts used by organizations in planning future operations are?
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Economic, demand and technological forecasting
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- Which one is not one of the 6 sourcing strategies?
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Short-term relationships
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- Outsourcing:
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All of the above, True
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- Vertical integration:
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Developing the ability to produce goods and services previously purchased or actually buying a supplier or a distributer
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- Forward integration:
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Establishing store/ buying the delivery truck
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- Backward integration:
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A firm purchases its suppliers
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- Bullwhip effect:
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when it occurs? All of the above or true
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- Postponement:
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The delay of any modification or customization to a product as long as possible in the production process
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- Distribution management focuses on:
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The outbound flow of final products
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- Supply chain management ethical issues:
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All of the above are true
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- Which term describes a supply chain that is designed to optimize both forward and reverse flows?
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?
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- Which of the following is not one of the 5 parts of the supply chain operations reference score?
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Sell (plan, source, make, deliver and return) - Inventory: types
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- Which of the following is an element of inventory holding costs?
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All of the above
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- The purpose of safety stock:
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is to control the likelihood of a stock out due to variable demand
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- EOQ- economic order quantity model:
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Is to minimize the sum set up cost and holding cost
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- A bakery wants to determine how many trays of donuts it should prepare eachday, Demand is normal with a mean of 5 trays and standard deviation of 1 tray. If the owner wants service level of at least 95%, how many trays should they prepare?
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7 trays
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- Which of the following would most likely fall under the scope of only the operations manager?
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Setting inventory levels
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- Aggregate planning:
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3-18 months, intermediate range
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- Disaggregation:
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Breaks the aggregate plan into greater detail
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- What directly results from a disaggregation of an aggregate plan?
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A master production schedule
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Which of these is among the demand options of aggregate planning?
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Backordering during high demand periods
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- Which of the following aggregate planning strategies is known to lower employee morale?
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Varying work force size by hiring or layoffs
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- In level scheduling, what is kept uniform from month to month?
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Production and workforce levels
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- PROBLEM: Graph given, this company is preparing to aggregate its plan for the second half of the year. The table below contains monthly demand estimates and working days per month. Complete the table by computing total demand per day for each month and the average requirements in units per day in the 6-month planning horizon. Prepare a graph of forecast demand and level production, by months, for the planning period. Label clearly
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750 average time
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- Revenue management is most likely used in which of the following:
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An airline attempting to fill "perishable" seats to maximize revenue
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- Which of the following is specifically characterized by a focus on continuous improvement, respect for people and standard work practices?
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TPS Toyota production system
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- 5 S's:
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All of the above.
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- Which one of the following statements is true about the Kan Ban system?
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The customer work station signals to the supplier workstation when production is needed
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- Difference between poisson and exponential distribution:
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In the analysis of queuing models, the poisson distribution often describes arrival rates and service times are often by the negative exponential distribution
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- Queuing system or waiting line has 2 parts which are?
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1) arrival 2) queued is line or waiting in line itself 3) service facility
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- Which of the following occurs as the level of service decreases (cost of waiting time)?
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The cost of waiting goes down as the service level increases
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- Waiting line model, meeting the assumptions of MM1, has an arrival rate of 2 per hour and a service rate of 6 per hour. What is the utilization factor?
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.33 a waiting line model
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- Little's law: Statements not included in little's law:
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cannot be applied to service operations
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- MM1, MD2 differences
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??