Devry GSCM 530 Entire Course

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Devry GSCM 530 Entire Course

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All Discussions All
Assignments And All Quizes
week 1

Demand Management and Forecasting From a Systems Perspective
(graded)

Explain the operations planning and demand management activities across
the supply chain.

Compare Various Options and Approaches to Forecasting (graded)

Differentiate among demand planning, demand forecasting, and demand
management activities.

week 2

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Sales and Operations Planning (graded)

Explain the sales and operations planning process and describe why it needs
to be a dynamic process.

Aggregate Planning for Production and Services (graded)

Define the contents of aggregate plans and explain the differences between
aggregate planning for manufacturing versus service companies.
week 3

Master Production Scheduling (MPS) (graded)

Explain the master production scheduling process and describe information
and data inputs and outputs.

Bills of Material (BOM) and Material Requirements Planning (MRP)
(graded)

Define different bills of material (BOMs) structures and explain the MRP
process and when it should be used.

week 4

Master Production Scheduling (MPS) (graded)

Explain the master production scheduling process and describe information
and data inputs and outputs.
Bills of Material (BOM) and Material Requirements Planning (MRP) (graded)

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Define different bills of material (BOMs) structures and explain the MRP
process and when it should be used.

week 5

Project Management (graded)

What are the different types of projects and organization structures used in
supply chain environments?

Project Scheduling (graded)

Calculate the critical path in a project and the duration of the project.

week 6

Process Mapping and Analysis (graded)

Explain the relationships between processes and value.

Customer Service Management (graded)

Describe how operations and supply chain management balance supply and
demand to exceed customer expectations.

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week 7

Inventory Strategies and Policies (graded)

Explain the advantages and disadvantages of the different inventory
strategies and policies.

Inventory Financial Impacts and Service Levels (graded)

Explain and calculate asset productivity and customer service as they relate
to the measures of inventory performance.
ALL ASSIGNMENTSGSCM 530 Week 1 Homework assignment

Assignment
Assignment: page 431, Problems 2, 8, and 12

2. Given the series of demand data below

a. Calculate the forecasts for periods 7 through 11 using moving average
models with n = 2, n = 4, and n = 6.
b. Calculate the bias and MAD for each set of forecasts. Which moving
average model is the best?

8. The owner of an online video rental service has recorded the following
rentals each week:

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a. Use a three-week moving average to forecast sales for each of the weeks
4 through 9.
b. Use a four-week moving average to forecast sales for each of the weeks 5
through 9.
c. Compare the forecasts created by these two methods using mean absolute
deviation. Which forecasting method would you recommend?

12. Monthly usage data for pallets used in a distribution center are as
follows:

a. Calculate the monthly usage index for each month.
b. Use simple linear regression to forecast total usage of pallets for year 5.
c. Forecast the seasonally adjusted usage for pallets for each month in year
5.

Links to sample guide for homework assignment below:

12-02 http://www.viddler.com/embed/67f127aa/?
f=1&autoplay=0&player=full&disablebranding=0
12-12 http://www.viddler.com/embed/4061df8c/?
f=1&autoplay=0&player=full&disablebranding=0
12-17 http://www.viddler.com/embed/2f463df5/?
f=1&autoplay=0&player=full&disablebranding=0

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2. Given the series of demand data below

a. Calculate the forecasts for periods 7 through 11 using moving average
models with n = 2, n = 4, and n = 6.
b. Calculate the bias and MAD for each set of forecasts. Which moving
average model is the best?

8. The owner of an online video rental service has recorded the following
rentals each week:

a. Use a three-week moving average to forecast sales for each of the weeks
4 through 9.
b. Use a four-week moving average to forecast sales for each of the weeks 5
through 9.
c. Compare the forecasts created by these two methods using mean absolute
deviation. Which forecasting method would you recommend?

12. Monthly usage data for pallets used in a distribution center are as
follows:

a. Calculate the monthly usage index for each month.
b. Use simple linear regression to forecast total usage of pallets for year 5.
c. Forecast the seasonally adjusted usage for pallets for each month in year
5.

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Links to sample guide for homework assignment below:

12-02 http://www.viddler.com/embed/67f127aa/?
f=1&autoplay=0&player=full&disablebranding=0
12-12 http://www.viddler.com/embed/4061df8c/?
f=1&autoplay=0&player=full&disablebranding=0
12-17 http://www.viddler.com/embed/2f463df5/?
f=1&autoplay=0&player=full&disablebranding=0

week 24. The current aggregate demand requirements for a firm are shown below
for the next six months:

The firm always plans to meet all demand. The firm currently has 120
workers capable of producing 120 units in a month (1 unit/worker). The
workforce can be increased (at a cost of $500 per worker) or decreased (at a
cost of $1,000 per worker). Inventory holding cost is $100 per unit per
month. The firm currently has 40 units of inventory on hand, and it would like
to have 40 units available at the end of each month. Regular production cost
is $3,000 per unit.
a. What should the aggregate plan be if the inventory holding cost is to be
minimized?
b. What is the cost of this plan?

6. JokersRWild makes playing cards in several different styles, but a
“standard” deck of cards is used for planning purposes. The average worker
at JokersRWild can make 10,000 sets of decks of cards per month at a cost of
$1.00 per deck during regular production and $1.30 during overtime. The
company currently employs 25 workers. Experience shows that it costs $500
to hire a worker and $500 to fire a worker. Inventory carrying cost is $.25 per
deck per month. Given the following demand estimate, develop a six-month
production plan based on level production, chase using overtime (no workers
will be fired and inventory increases if necessary), and chase by changing
workforce level. The beginning inventory is 50,000, and at least that amount
is desired each month.
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The citation provided is a guideline. Please check each citation for accuracy
before use.

8. Appliances Inc. is preparing an aggregate production plan for washers for
the next four months. The company’s expected monthly demand is given
below in the chart. The company will have 500 washers in inventory at the
beginning of the month and desires to maintain at least that number at the
end of each month. Below is other critical data:
Production cost per unit = $300
Inventory carrying cost per month per unit = $50 (based on ending month
inventory)
Hiring cost per worker = $1,000
Firing cost per worker = $2,000
Beginning number of workers = 10
Each worker can produce 100 units per month

Complete the tables and determine the cost of the two plans

week 3

4. Based on the BOM shown below, how many units of part F will be needed
if 15 units of end item A are needed? If the company decided to purchase
part D from suppliers, how would the BOM change? Assuming part D is

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purchased, how many units of part F are needed to make 15 units of end
item A?

8. Using the information in problem 7, develop an indented BOM
7. Based on the BOM shown below, how many of part D will be needed if 100
units of end item A are needed? How many of part F

12.Complete the MRP record for a bicycle seat

13.Given the BOM and the MPS for end item A, complete the MRP schedule
for items A, C, D, and E.

Week 4

Assignments
Assignment: page 83, Problems 8 and 9

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Assignment: page 491, Problems 18 and 19

Problem 8
New Time Videos (NTV) is a new online video rental service. In the field, it is
trying to compete by offering its customers access to all of the major new
video releases in one business day. That is, if you order a video from NTV,
you can expect it in one business day from the time when you placed the
order. When you are done with the video, you simply drop it in the prepaid
mailing envelope and return it. All videos arrive in a sorting facility located in
the Midwest where envelopes with the videos are opened, checked (right
video with the right sleeve, no scratches, no cracks, no dirt on the videos),
and made ready to be sent out again. As the manager of this facility, your
goal is to turn the returned videos around in 6 hours (a shift is 8 hours long).
You have the following information:
Top of Form

a. Calculate the expected average flow time (hint: Use Little’s Law).
b. What changes would you recommend to meet the goal of processing a
returned video within 6 hours?
9.
PizzaTime Restaurants is building a new pizza place and needs to determine
how big to make the various parts of its facility. It wants to be able to
accommodate a maximum of 500 customers per hour at its peak times.
PizzaTime has collected the following information: the average time to place
and receive an order is 1.1 minutes, 20 percent of the customers have cars
and require parking spots, and the average length of time at the restaurant
is 20 minutes per customer. Assuming a capacity cushion of 20 percent, find:

a. The number of cash registers required. (assume an average of 4
customers per group)
b. The number of parking spaces needed.
c. The number of seats/tables needed. (assume 4 seats per table)
d. Which of these operations are likely to be bottlenecks?

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18.
Calculate the processing load and develop the load profile for the computer
assembly process. As the planner, what concerns do you have (if any)? What
changes might you consider?

19.
Calculate the processing load and available capacity, and develop the load
profile for the stereo speaker subassembly. Two employees work the
assembly process for 40 hours e

week 5

4. Answer the following questions for the following network. Times shown are
in days.

a. What is the length of the critical path?
b. What are the earliest start and latest start for E?
c. What is the latest start for B?
d. If all other tasks are completed in their expected durations, will the project
length be affected if task B actually takes five days instead of the expected
three?

6. Consider the following information about a small project:

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a. Draw a network diagram.
b. Identify the critical path, earliest start and finish, and slack for each task.
c. Which of these activities should the project manager track most closely?
d. What would happen if a new estimate for task D increases its expected
duration from two days to six days? Would the project take longer? Would
anything else change?

4. Annie is planning a large surprise party for her sister Gwendolyn. She has
developed the plan below, including estimates of the time (in hours) and cost
necessary to perform each of the activities required at the currently planned
pace and at the crashed pace.

a. Annie is most interested in reducing the time associated with creating the
guest list. What is the crash cost per hour for that activity?
b. Annie will save $40 for every hour she can reduce from her plan. Annie
has decided to crash her project and use the money she saves to purchase a
larger gift for Gwendolyn. Which activity should she crash first?
c. Annie has now crashed activity A by four hours at a cost of $110. What
other activity could she crash to further reduce the project?
d. Annie has now crashed activity A by four hours at a cost of $110 and
activity E by two hours at a cost of $75. What other activity could she crash
to further reduce the project?
e. How much money did Annie save by crashing the project?
f. What is the duration of the fully crashed project?

Week 6

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GSCM 530 Week 6 homework

2. Your eyeglass frame-making firm is considering one of two distribution
alternatives. The first is to make all shipments from your Chicago plant to
one of three regional warehouses located in Philadelphia, Chicago, and Reno.
All orders from eyeglass retailers would be shipped from these sites. The
second alternative would be to create one warehouse in Memphis,
Tennessee, and ship all orders via Federal Express.
a. Prepare a process flow diagram of each alternative.
b. What additional information would you need to ascertain which alternative
will provide the best value to your customers?
c. Is this different from a lower cost solution? Why?

2. The following quarter, Aldo’s senior executive was interested in knowing
whether performance had improved. The following table presents order and
shipping data collected for the next quarter. How would you answer the
senior executive?

3. Suppose a firm, in discussions with customers, learns that customers
identify eight factors that they evaluate for every order they receive from
suppliers. The firm then finds that its performance is 95 percent on six of
these factors and 92 percent on the other two factors. What is the firm’s
probable perfect order performance?
4. In problem 3, suppose performance on two of the factors that had been 95
percent falls to 90 percent. What is the impact on perfect order
performance?
week 7

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2. The following table contains data about the inventory for five items at Jones
Corporation. Complete the missing items in the table.

3. Suppose Jones Corporation in the above problem determined that its
annual inventory carrying cost = 18 percent. The item unit cost was as
follows:
Item 1 = $25.00
Item 2 = $60.00
Item 3 = $5.00
Item 4 = $10.00
Item 5 = $1.00
Compute the dollar values for the information in the above table, determine
the annual inventory carrying cost for each item, and the total annual
inventory carrying cost.

4. Again, using the data for Jones Company in problems 2 and 3, suppose
Jones believes that in the upcoming year, the rate of sales expected for each
of the five items is as follows:
Item 1 = 4,000 units per day
Item 2 = 2,000 units per day
Item 3 = 15,000 units per day
Item 4 = 7,000 units per day
Item 5 = 2,000 units per day
Compute the days of supply for each item.
QUIZESQUIZES WEEK 1 – 7

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