Operations Management: Sustainability and Supply Chain Management (12th Edition)
12th Edition
ISBN: 9780134130422
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Textbook Question
Chapter 14, Problem 6P
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
с
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
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
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?
Chapter 14 Solutions
Operations Management: Sustainability and Supply Chain Management (12th Edition)
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 - Prob. 3PCh. 14 - Prob. 4PCh. 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 - 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 - Prob. 17PCh. 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. 26PCh. 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. 31PCh. 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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- I 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_forwardThe 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_forward
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- A 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_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
- The table given below shows a partially completed MPS record for product A. What is the remaining ATP inventory (discrete) for week 7 after the company receives a 20 units of customer order for week 6? Order policy: 60 units Lead time: 1 week Item: A Quantity on hand: 30 Week 3 30 7. 34 11 4. Forecast requirements Customer orders (booked) Projected on-hand inventory MPS quantity MPS start ATP inventory 22 24 18 27 36 28 26 12 24 O a 59 Ob. 29 OcO Od. 49 Oe. 39arrow_forward2. What is Material Requirement Planning (MRP)? Briefly explain THREE (3) advantages from its use.arrow_forwardThe following table lists the components needed to assemble an end item, lead times (in weeks), and quantities on hand. Direct Components L(2), C(1), K(3) B(2), 3(3) G(2), B(2) H(4), B(2) Item End L с K B 3 G H Lead Time 2 NWWNWWNN 2 3 3 2 3 3 2 Amount on Hand e 11 14 20 31 488HRDAH 28 Click here for the Excel Data File a. If 43 units of the end item are to be assembled, how many additional units of B are needed? (Hint You don't need to develop MRP plan.) chapter13 03 v17.xlsx - Excelarrow_forward
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