Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Textbook Question
Chapter 14, Problem 4P
Using the information in Problem 14.3, construct a gross material requirements plan.
•• 14.3 The demand for subassembly S is 100 units in week 7. Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 1 unit of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 2 units of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make V, 3 weeks to make W, 1 week to make X, 2 weeks to make Y, and 1 week to make Z.
- a. Construct a product structure. Identify all levels, parents, and components.
- b. Prepare a time-phased product structure.
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Given the following information, develop a material requirements plan for end item A and its
components. 50 and 80 units of A are needed at the beginning of week 6 and 8, respectively.
On-Order
Item
A
B
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D
E
Item
A
BUDE
C
C(2)
Week 3: 50
On-Hand
20
60
150
10
On-Hand
20
60
150
10
Week 3:30, Week 5:80
Week 3:50, Week 5:100
B
Week 4: 50, Week 6: 100
Week 3: 50, Week 5: 80
D(3)
The planned order release for Product B is:
E
200 (Week 2)
On-Order
200 (Week 2)
A
E
D(3)
Lead Time
1 wk
2 wks
1 wk
2 wks
1 wk
Lead Time
1 wk
2 wks
1 wk
2 wks
1 wk
C
Order Size
lot-for-lot
50
100
200
lot-for-lot
Order Size
lot-for-lot
50
100
200
lot-for-lot
C
E
Q3. Discuss Material and Capacity Requirements Planning and scope or function of Material Management
6. Given the following product structure diagram, complete the MRP records for parts A, B, and C.
с
Part A
Gross requirements
Scheduled receipts
Projected available balance
Planned order releases
Q=20; LT= 1; SS = 0.
21
1
5
B
(2 required)
с
Week
4 5 6
12 22
2
3
15 18 8
Chapter 14 Solutions
Operations Management
Ch. 14 - What is the difference between a gross...Ch. 14 - Prob. 2DQCh. 14 - What are the similarities between MRP and DRP?Ch. 14 - How does MRP II differ from MRP?Ch. 14 - Which is the best lot-sizing policy for...Ch. 14 - What impact does ignoring carrying cost in the...Ch. 14 - MRP is more than an inventory system; what...Ch. 14 - What are the options for the production planner...Ch. 14 - Master schedules are expressed in three different...Ch. 14 - What functions of the firm affect an MRP system?...
Ch. 14 - Prob. 11DQCh. 14 - Identify five specific requirements of an...Ch. 14 - What are the typical benefits of ERP?Ch. 14 - What are the distinctions between MRP, DRP, and...Ch. 14 - As an approach to inventory management, how does...Ch. 14 - What are the disadvantages of ERP?Ch. 14 - Use the Web or other sources to: a. Find stories...Ch. 14 - Prob. 18DQCh. 14 - Use the Web or other sources to identify what an...Ch. 14 - You have developed the following simple product...Ch. 14 - You are expected to have the gift bags in Problem...Ch. 14 - The demand for subassembly S is 100 units in week...Ch. 14 - Using the information in Problem 14.3, construct a...Ch. 14 - Using the information in Problem 14.3, construct a...Ch. 14 - Refer again to Problems 14.3 and 14.4. In addition...Ch. 14 - Refer again to Problems 14.3 and 14.5. In addition...Ch. 14 - As the production planner for Scott Sampson...Ch. 14 - Prob. 9PCh. 14 - a. Given the product structure and master...Ch. 14 - Prob. 11PCh. 14 - Based on the data in Figure 14.13, complete a net...Ch. 14 - Prob. 13PCh. 14 - A part structure, lead time (weeks), and on-hand...Ch. 14 - You are product planner for product A (in Problem...Ch. 14 - Prob. 16PCh. 14 - Data Table for Problems 14.17 through 14.20 14.17...Ch. 14 - Develop an EOQ solution and calculate total...Ch. 14 - Develop a POQ solution and calculate total...Ch. 14 - Using your answers for the lot sizes computed in...Ch. 14 - Prob. 21PCh. 14 - Grace Greenberg, production planner for Science...Ch. 14 - Karl Knapps, Inc., has received the following...Ch. 14 - Coleman Rich, Ltd., has received the following...Ch. 14 - Prob. 25PCh. 14 - Prob. 26PCh. 14 - Using the data for the coffee table in Problem...Ch. 14 - When 18,500 Orlando Magic Fans Come to Dinner...Ch. 14 - When 18,500 Orlando Magic Fans Come to Dinner...Ch. 14 - When 18,500 Orlando Magic Fans Come to Dinner...Ch. 14 - MRP at Wheeled Coach Video Case Wheeled Coach, the...Ch. 14 - MRP at Wheeled Coach Video Case Wheeled Coach, the...Ch. 14 - MRP at Wheeled Coach Video Case Wheeled Coach, the...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- SOLVED FIXED TIME PERIOD MODEL PROBLEMS Activities/Assessments:Activity 13• The weekly demand for a product is 770 units. The standard deviation of daily demand is 10 units. The firm reviews its inventory every 28 days. Each order for the product arrives 9 days after placement. At the time of review, there are 10 units backorder. If 95 percent of all demand is to be satisfied from items in stock:a) How many units should be the safety stock?b) What’s the product’s inventory status?c) How many units should be ordered for this period?arrow_forwardI need last 2 questions pleasearrow_forwardA factory has just received an order for 95 units of an end item, which are to be shipped at the start of week 8. Relevant information of the end item and the components is as follows. Lead Time On Hand Scheduled Direct Item Order Policy (weeks) Inventory receipts Components End item lot for lot A(3), B(2) 2 15 10 52 at week 3 lot for lot C(5), D(3) 20 60 at week 4 lot for lot D(3) 100 min. of 500 1 12 lot for lot Develop the material requirements plan (please print out an empty MRP table to work with), and determine how many units of component D are needed in the "planned order release" Input should be an exact number.arrow_forward
- The three tables above show the master production schedule and the bill of materials of part A, and the inventory records of all the parts. There are no scheduled receipts. Given this information, what is the net requirement of part A in Week 4?arrow_forwardAssignment: Bill of Materials (BOM) How many units will be needed from B, C, D, E, F, and G if we want to produce 50 units of product A. Product (A) Level A Ci3) 1 Bi2) Ep) Fa Ej2) D12) 3 Di2) 2.arrow_forwardDescribe what is secondary report in MRP system output?arrow_forward
- Explain the management importance of aggregate preparation.arrow_forwardA factory has just received an order for 100 units of an end item, which are to be shipped at the start of week 8. Relevant information of the end item and the components is as follows. Item Lead Time (weeks) On Hand Inventory Scheduled receipts Order Policy Direct Components End item 2 30 lot for lot A(4), B(3), C(2) A 3 20 54 at week 3 lot for lot D(2) B 2 10 68 at week 4 lot for lot D(5) C 1 100 multiple of 60 D 1 20 min. of 500 Develop the material requirements plan (please print out an empty MRP table to work with), and determine what the "projected available balance" is for component D at week 8. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.arrow_forwardAnswer all 3 parts please!arrow_forward
- Why is there a need for aggregate planning?arrow_forward3) Amelia Ltd. makes a plastic tricycle that is composed of three major components: a handlebar-front wheel-pedal assembly, a seat and frame unit, and rear wheels. The company has orders for 48,000 of these trikes. Current schedules yield the following information. Component Front Seat/Frame Rear wheel (each) Available Requirement Plastic 12 16 .20 S Model Regular Deluxe Heavy 100000 Time 40 24 8 2 2 320000 60000 Page 4 of 9 Space Manufacture 8 16 8 4 Cost to 12 2 3 4 5 Cost to Purchase 24 The company obviously does not have the resources available to manufacture everything needed for the completion of 24000 tricycles so has gathered purchase information for each component. Requested: Develop a linear programming model to tell the company how many of each component should be manufactured and how many should be purchased in order to provide 24000 fully completed tricycles at the minimum cost. 18 6 4) A paint supply company makes three styles of Paint Rollers, regular, deluxe and heavy.…arrow_forward6. Given the following product structure diagram, complete the MRP records for parts A, B, and C. Part A Gross requirements Scheduled receipts Projected available balance 21 Planned order release Q-20; LT-1;SS=0. B (2 required) Week Part B Week 123456 Gross requirements Scheduled receipts 32 Projected available balance 20 Planned order release Q=40; LT = 2; SS = 0. 1 2 3 4 5 6 Part C 5 15 18 8 12 22 Gross requirements Scheduled receipts Projected available balance 70 Planned order release Q=LFL; LT = 1; SS = 10. Week 1 2 3 456arrow_forward
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