Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Chapter 8, Problem 41AP
Summary Introduction
Interpretation: The gross requirement
Concept Introduction:
The gross requirement schedule can be defined as the summation of the dependent and independent demand of the component before the total of the on-hand inventory and schedule receipts
Expert Solution & Answer
Answer to Problem 41AP
The gross requirement of MPS −
| Week | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| MPS | 12 | 12 | 8 | 10 | 10 | 3 | 22 | 14 | 18 | 6 | |||
| Gross requirement of processor | 12 | 12 | 8 | 10 | 10 | 3 | 22 | 14 | 18 | 6 | |||
| Gross requirement of solar cell | 48 | 48 | 32 | 40 | 40 | 12 | 88 | 56 | 72 | 24 | |||
| Gross requirement of LCD | 12 | 12 | 8 | 10 | 10 | 3 | 22 | 14 | 18 | 6 | |||
| Gross requirement of button | 480 | 480 | 320 | 400 | 400 | 120 | 880 | 560 | 720 | 240 |
Explanation of Solution
Given information:
The lead time of four solar cells = 1 week
The lead time of one LCD = 1 week
The lead time of forty buttons = 2 weeks
The lead time of one processor = 3 weeks
The MPS of the product from week 8 to week 17 is given as −
| Week | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| MPS | 1200 | 1200 | 800 | 1000 | 1000 | 300 | 2200 | 1400 | 1800 | 600 |
The following method will be used to determine the gross requirement of the component processor −
- The multiplication of the production of CL by one will result in gross requirement of processor.
- The gross requirement will be phased back by three periods.
The following method will be used to determine the gross requirement of the component solar cell −
- The multiplication of the production of CL by four will result in gross requirement of solar cell.
- The gross requirement will be phased back by one period.
The following method will be used to be calculate the gross requirement of component LCD −
- The multiplication of the production of CL by one will result in gross requirement of LCD.
- The gross requirement will be phased back by one period.
The following method will be used to be calculate the gross requirement of component button −
- The multiplication of the production of CL by forty will result in gross requirement of button.
- The gross requirement will be phased back by two periods.
Now, the gross requirement of MPS can be given as −
| Week | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| MPS | 12 | 12 | 8 | 10 | 10 | 3 | 22 | 14 | 18 | 6 | |||
| Gross requirement of processor | 12 | 12 | 8 | 10 | 10 | 3 | 22 | 14 | 18 | 6 | |||
| Gross requirement of solar cell | 48 | 48 | 32 | 40 | 40 | 12 | 88 | 56 | 72 | 24 | |||
| Gross requirement of LCD | 12 | 12 | 8 | 10 | 10 | 3 | 22 | 14 | 18 | 6 | |||
| Gross requirement of button | 480 | 480 | 320 | 400 | 400 | 120 | 880 | 560 | 720 | 240 |
Hence, the gross requirement schedule is determined which will be used to determine the net requirement and planned order release of each component.
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b-1.
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b-2. Identify the critical activities, and determine the duration of the project.
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Chapter 8 Solutions
Production and Operations Analysis, Seventh Edition
Ch. 8.1 - Prob. 1PCh. 8.1 - Prob. 2PCh. 8.1 - Prob. 3PCh. 8.1 - Prob. 4PCh. 8.1 - Prob. 5PCh. 8.1 - Prob. 6PCh. 8.1 - Prob. 7PCh. 8.1 - Prob. 8PCh. 8.1 - Prob. 9PCh. 8.2 - Prob. 10P
Ch. 8.2 - Prob. 11PCh. 8.2 - Prob. 12PCh. 8.2 - Prob. 13PCh. 8.2 - Prob. 14PCh. 8.2 - Prob. 15PCh. 8.2 - Prob. 16PCh. 8.2 - Prob. 17PCh. 8.2 - Prob. 18PCh. 8.2 - Prob. 19PCh. 8.2 - Prob. 20PCh. 8.2 - Prob. 21PCh. 8.2 - Prob. 22PCh. 8.3 - Prob. 23PCh. 8.3 - Prob. 24PCh. 8.3 - Prob. 25PCh. 8.4 - Prob. 26PCh. 8.4 - Prob. 27PCh. 8.4 - Prob. 28PCh. 8.4 - Prob. 29PCh. 8.5 - Prob. 30PCh. 8.5 - Prob. 31PCh. 8.5 - Prob. 32PCh. 8.5 - Prob. 33PCh. 8.5 - Prob. 34PCh. 8.6 - Prob. 35PCh. 8.6 - Prob. 36PCh. 8.6 - Prob. 37PCh. 8.6 - Prob. 38PCh. 8.6 - Prob. 39PCh. 8.6 - Prob. 40PCh. 8 - Prob. 41APCh. 8 - Prob. 42APCh. 8 - Prob. 43APCh. 8 - Prob. 44APCh. 8 - Prob. 45APCh. 8 - Prob. 46APCh. 8 - Prob. 48APCh. 8 - Prob. 49APCh. 8 - Prob. 50APCh. 8 - Prob. 51AP
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