Questions and Answers of Operations Management 6th

What takt time would match capacity and demand if demand is 120 units a day, there are two shifts of 480 minutes each, and workers are given three half-hour breaks during each shift, one of which is
What are the benefits and risks of (a) small lot sizes, (b) standardized process, and (c) low inventories?
Level Operations is a small company that produces a variety of security devices and safes. The safes come in several different designs. Recently, a number of new customers have placed orders, and the
What are (a) Takt time, (b) SMED, (c) Jidoka, (d) Poka-yoke?
What aspects of product design are important for TIT/lean?
Visit http://www.cbc.ca/news/health/simple-hospital-innovation-saves-time-money-1.1298578 to see an application of lean in a hospital. What happened in the hospital?
What are the key enablers for successful implementation of JIT/lean?
Visithttp://totalqualitymanagement.wordpress.com/2008/10/28/lean-production-system, and compare the concepts of JIT/lean production system there with the information given in the chapter.
View http://www.youtube.com/watch?v=3mcMwlgUFjU&feature=related and describe value stream mapping.
Was the service of WestJet JIT/lean?
Who in the company is affected by a decision to shift from an MRP system to a TIT/lean system?
What are the benefits of the cellular layout to Airline Manufacturing?Airline Manufacturing is a 275,000 ft2, 100-employee wood component manufacturer supplying upholsterers (e.g., sofa
Visit http://www.shingoprize.org/awards, choose a recentrecipient of the Shingo prize, and briefly summarize its JIT /lean program.
You need to plan the fabrication and assembly of an order of 40 side (accessory) tables due in six workdays. See the product structure tree that follows. The raw material is planks of oak measuring
A furniture maker has received an order for 100 units of its kitchen table to be delivered in six workdays. The table consists of one top and four legs, made from purchased lumber (2" by 6" by 6').
What are some unforeseen costs of the ERP implementation?
Explain the part-period method.
What is lot sizing and what is its goal?
What is back-flushing and why is it used?
What is pegging and why is it used?
What are planning and modular BOMs?
What is the difference between the determination of purchasing lead time and manufacturing lead time?
a. What are the requirements for these five items for the next 13 weeks?b. Is Zurn carrying too much inventory? Zurn makes various plumbing products such as fixtures, faucets, drainage
Why should the planning horizon be at least as long as the cumulative lead time?
How can the use of MRP contribute to profitability?
The IT department has a problem. Its computer died just as it spat out the following information: Planned-order release for item J27 = 640 units in week 2. The company has been able to reconstruct
A company produces two products, A and B, that go through a three-step sequence of fabrication, assembly, and packaging. Processing requirements for the departments (hours per unit) are:Department
Read http://www.ism.ws/files/RichterAwards /IBMSupportDocs2012.pdf about IBM's supply chain MRP, and explain its benefit to IBM.
Choose one of the following applications of MRP/ERP and determine the benefit of using the software:a. http://www.industrios.com/files/pdf/Success_Story_ Cam_ Tran. pdfb.
Why should future users of MRP, MRP II, or ERP software be involved in its selection and implementation?
Why are each of the following considerations an ERP software important?a. Ease of use.b. Complete integration.c. Data reliability.
What trade-offs are involved in customizing an ERP software?
Jet Spray Corp, now part of IMI Cornelius, manufactures dispensers for beverages. One of Jet Spray's best-known products is a two-product cold beverage dispenser, the twin Jet 3 (TJ3), which is made
Lands' End is a phone/mail/Internet-order retailer of outdoor clothes and shoes. Like other retailers, Lands' End's customer orders surge just before Christmas. Therefore, Lands' End requires more
Owens Corning Fiberglas (OCF) makes several types, weights, and widths of Fiberglas mats from chopped strands of fibreglass for boat hulls on two production lines in a plant.Aggregate planning for
Minco Inc. is a small manufacturer of fused magnesia and silica.3 Minco's continuous improvement efforts led to a capacity and production planning software. To prepare for the use of software, a
Prepare an MPS table like Figure 13-12 using the following information: The forecast for each week of an eight-week schedule is 50 units. The MPS rule is to schedule production if the projected
Update the MPS table shown in Figure 13-12 given these inputs: It is now the end of week 1; customer orders are 35 units for week 2, 16 tor week 3, 11 for week 4, 8 for week 5, and 3 for week 6.
The manager of an injection moulding shop is interested in using aggregate planning to determine the shop's production levels during each of the next four quarters. The shop uses eight moulding
Prepare an MPS table for the pumps of Figure 13-12 using the same inputs but change the MPS rule from "Schedule production when the projected on-hand inventory would be negative without production"
A small high-end swimwear manufacturer needs to plan for next year. Demand for swimwear (in units) follows a seasonal pattern:a. Determine the unit costs.b. Determine how many units the company will
Mity-Lite (ML) is a manufacturer of folding and stackable chairs and folding tables for social events. The demand for ML's products is seasonal, peaking in spring and summer. Suppose it is December
What is FTE? Give an example.
How is MPS for a process industry different?
What is a time fence and why is it useful?
A niche bicycle manufacturer manufactures bicycles in two different sizes. David, the company's owner-manager, has just received the following forecasts for the next six months.a. Under what
What is RCCP and why is it useful?
A spring-water bottling company has recently expanded into flavoured water. The marketing manager is predicting an upturn in demand based on the new offerings and the increased public awareness of
Refer to Solved Problem 1. Start with 20 permanent workers. Prepare a minimum cost plan that may use some combination of hiring ($250 per worker), subcontracting ($8 per unit, maximum of 20 units per
What are the differences between aggregate operations planning for services and goods?
Give an example of a product with highly seasonal demand and discuss how its manufacturer meets the demand.
A small distiller produces whisky. The salesperson has developed the following forecasts for demand (in cases) for the next six months.Develop the minimum cost production plan using level
How does the trial-and-error approach for aggregate operations planning work?
A small company produces recreational vehicles. The marketing manager has developed the following forecasts (in units):Develop the minimum cost production plan and compute its total cost. Month Mar
A manager would like to know the total cost of an aggregate production plan that meets the forecasts below using a steady regular production rate of 200 units a month, a maximum of 20 units per month
A fabric mill has developed the following forecasts (in hundred bolts of cloth). The mill has a normal capacity of 275 units (a unit equals one hundred bolts) per month, and employs 275 workers.
What are the most common decision variables for aggregate operations planning in a manufacturing setting? In a service setting?
A manufacturer of heavy truck engines must develop an aggregate production plan, given the following demand forecasts for engines. The company currently has 13 workers and makes 130 engines per
What is an equivalent unit and why is it used?
Many companies are using temporary workers to meet their peak demand. Is using temps instead of permanent workers ethically wrong? Briefly discuss.
Visit https://www.oliverwight-americas.com/system/files/clients/profiles/caterpillarna.pdf and http://oliverwightamericas. co ml system/files/ clients/ pro files/ caterpillarttt.pdf, and summarize
How has technology had an impact on aggregate operations planning?
Why is there a need for operations planning?
a. What are the aggregate demand forecast and aggregate safety stock for each week, and the aggregate initial inventory?b. Using the result of part a, and available hours during regular time (80
Visit http://www.kinaxis.com/Global/resources/case-studies/supply-chain-responsiveness-mtd-case-study-kinaxis.pdf, and summarize what RapidResponse is doing for MTD.
What feasible set of lot sizes for each family in each week will minimize total setup and holding cost? A feasible set of lot sizes will meet the demand during the next three weeks within 40-hour
Visit http://info.steelwedge.com/rs/steelwedge/images/sw_sony_case_study_2014.pdf, and summarize how Sony Entertainment is using Steelwedge's planning software. Steelwedge was recently bought by
What is the minimum cost aggregate production plan for Scotsburn Dairy?Scotsburn Dairy's plant in Truro, Nova Scotia, makes over 300 types and sizes of ice cream and frozen yogurt products. The
A major Saskatchewan potash producer ships potash from mines in Saskatchewan to several warehouses in North America by rail. The objective is to prevent stock-out at the warehouses. The demand from
A grain elevator not only buys grains from nearby farmers but also sells them seeds and chemicals. But how much of each item will be sold in a given year is uncertain, making the decision on the
Because there is a significant number of no-shows on a specific daily flight, the airline wants to intentionally overbook the flight. The number of no-shows can be described by a Normal distribution
Demand for Black Forest cake at the bakery of a supermarket can be approximated using a Poisson distribution with a mean of six per day. The manager estimates it costs $9 to prepare each cake. Fresh
A stockroom manager must set up inventory ordering procedures for two new items, P34 and P35. P34 can be ordered at any time, but P35 can be ordered only once every four weeks. The company operates
A hospital reorders size 7 surgical gloves when the supply on hand and on order falls to 18 units (pairs). Lead time for resupply is three days. Given the typical usage over the last 10 days below,
A car service shop uses 1,200 cases of oil a year. Ordering cost is $20 per order, and annual holding cost is $3 per case. The shop owner has specified an annual service level of 99 percent.a. What
Demand for a particular tablet at an electronics store has recently surged, and the store manager must recalculate at what inventory level to replenish it. The manager wants a probability of at least
A large electronics repair shop uses an average of 85 capacitors a day. The standard deviation is 5 units per day. The buyer follows this rule: Order when the amount on hand and on order drops to 625
What are the echelons in the liquid makeup supply chain of Procter & Gamble?
What is an ASRS? Give an example.
Briefly describe the three methods used for multi-echelon inventory management.
Can the optimal stocking level in the single period model ever be less than median (i.e., 50th percentile) demand? Explain briefly.
How are the economic production quantity and its model different from EOQ and its model?
Explain briefly how a higher holding cost should result in more frequent orders.
Watch Moose Jaw Hospital's kanban video https://www.youtube.com/watch?v=EQW-zcLCllE and describe how its two bin system works.
What benefits do bar codes have for inventory management?
Watch http://www.youtube.com/watch?v=4AcjAfWBVXg and summarize how SAP's SmartOps helped Celestica's supply chain inventory management.
Define purchase lead time. What factors affect it?
Readhttp://img.en25.com/Web/DematicCorp/%7B3af4ab7f-7233-463e-88ab-d96299f6a4c5% 7D NA_CS-1017 UBC.pdf and describe how Dematics' automatic storage and retrieval system is used by the UBC Library.
Employee theft of inventories can be a problem in a wholesaler/distributor/retailer warehouse. Name one thing a manager can do to combat this.
Answer the following questions about the Montreal DC of Canadian Tire. You might want to use the following article http://www.mmh.com/images/site/MMH 101 l _SystemRptCanadianTire.pdf and video
Have the Min/Max values been set correctly?Conor Shirley is a materials management (MM) intern in the supply chain management department of Cameco, one of the largest uranium producers in the world.
Visit http://mhi.org/mediaba nk/general.asp, choose a category, click on ''videos," pick a video, view it, and describe the equipment shown and its advantages.
a. What are the order-up-to level and the order quantity for these items? Audrey thinks that a lead time service level of 70 percent is adequate as large orders are passed to the supplier and the
View https://www.youtube.com/watch?v= gJixk7Yjc3E and briefly describe what Retail Pro 9 (the most popular retail software) can do.
Why is managing returns important?
What is involved in transportation execution and control?
What are the transportation modes?
What is a third-party logistics service? Give an example.
What is involved in transport planning?
Describe Lambert's partnership model.

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