A record that shows an item’s lot-size policy, lead time and various time-phased data Lot size = 230 unit

Lead time = 2 wks

Inventory Record

Week No. 1 2 3 4 5 6 7 8

Gross requirements 150 0 0 120 0 150 120 0

Scheduled receipt

Projected on-hand inventory (37)

Planned receipt

Planned order release

Material Requirement Planning (MRP)

230

Lot size = 230 unitLead time = 2 wks

Safety stock = 80 unit

Inventory Record

Week No. 1 2 3 4 5 6 7 8

Gross requirements 150 0 0 120 0 150 120 0

Scheduled receipt 230

Projected on-hand inventory (37)

Planned receipt

Planned order release

Material Requirement Planning (MRP)

Lot for LotLead time = 2 wks

Inventory Record

Week No. 1 2 3 4 5 6 7 8

Gross requirements 150 0 0 120 0 150 120 0

Scheduled receipt 230

Projected on-hand inventory (37)

Planned receipt

Planned order release

Material Requirement Planning (MRP)

Material Requirement Planning (MRP)Example

A

DB

C

FD

Week No. 1 2 3 4 5 6

Gross requirements of A 80

Gross requirements of C 50

2

Material Requirement Planning (MRP)For A (LT = 1 wk; lot for lot)

Week No. 1 2 3 4 5 6

Gross requirements

Scheduled receipt

Projected on-hand inventory

Planned receipt

Planned order release

For C (LT = 1 wk; lot for lot)

Week No. 1 2 3 4 5 6

Gross requirements

Scheduled receipt

Projected on-hand inventory

Planned receipt

Planned order release

Material Requirement Planning (MRP)For D (LT = 2 wks; lot size = 100)

Week No. 1 2 3 4 5 6

Gross requirements

Scheduled receipt

Projected on-hand inventory (15)

Planned receipt

Planned order release