MRP: Consider the MPS, BOM, and inventory data shown.

Master Production Schedule: Table below shows the MPS start quantities (planned order releases).

Time Period	1	2	3	4	5	6	7	8
End-Item P1 MPS Start Quantities		20			40		30
End-Item P2 MPS Start Quantities			25		15			20

Bill of Material: - Item P1 uses 1 each of subassembly A and 2 each of component B.

- Item P2 uses 1 each of subassembly A and 3 each of component C. - Subassembly A is made from 3 each of component D.

Selected Inventory Data:

Item	Lot Size Technique	Lead Time	Scheduled Receipts	On-Hand	Safety Stock
A	L4L	1		30	5
B	FOP, P=3	2	20 in period 2	20
C	FOQ=75	1	75 in period 1	10
D	L4L	2		40

1, Construct the MRP tables for items A, B, C, and D using the preceding information. The key row of interest is the Planned Order Releases; you may choose not to complete the Net Requirements Row. Specify all Action Notices corresponding to actions that must be implemented in Week 1 or earlier. If appropriate, use the MRP tables provided at the end of this assignment. Acronym Key: GR = Gross Requirements; SR = Scheduled Receipts, POHEI = Projected On Hand End-of-period Inventory, NR = Net Requirements, PR = Planned Receipts, POR = Planned Order Releases

2. What is MRP-II and why was it created? What does ERP add to MRP-II?