A product (A) consists of a base (B) and a casting (C). The base consists of a plate (P) and three fasteners (F). The lead time, current on-hand inventory and scheduled receipts are given in the table below. All components are lot for lot. The Master Schedule requires 100 units of product A be available in week 4 and 150 in week 6. Part Lead time On - Hand inventory Scheduled receipts A 1 20 None B 1 100 50 in Week 1 C 3 30 20 in Week 1, 30 in Week 2 P 2 0 50 in Week 1 F 3 0 30 in Week 1, 40 in Week 3 Required: A. Draw the product structure tree. B. Develop the MRP for Parts A, B, C, P, and F in order to meet the demand. The rows for MRP tables are Gross Requirement (GR), Scheduled Receipt (SR), On-Hand Inventory (OHI), Net Requirement (NR), and Planned Production (PP).

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter4: Linear Programming Models
Section: Chapter Questions
Problem 111P
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A product (A) consists of a base (B) and a casting (C). The base consists of a plate
(P) and three fasteners (F). The lead time, current on-hand inventory and scheduled
receipts are given in the table below. All components are lot for lot. The Master
Schedule requires 100 units of product A be available in week 4 and 150 in week 6.

Part Lead time On - Hand inventory Scheduled receipts
A 1 20 None
B 1 100 50 in Week 1
C 3 30 20 in Week 1, 30 in Week 2
P 2 0 50 in Week 1
F 3 0 30 in Week 1, 40 in Week 3

Required:
A. Draw the product structure tree.


B. Develop the MRP for Parts A, B, C, P, and F in order to meet the demand. The
rows for MRP tables are Gross Requirement (GR), Scheduled Receipt (SR),
On-Hand Inventory (OHI), Net Requirement (NR), and Planned Production (PP).

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