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One unit of A is made of two units of B, three units of C, and...

One unit of A is made of two units of B, three units of C, and two units of D. B is composed of one unit of E and two units of F. C is made of two units of F and one unit of D. E is made of two units of D. Items A, C, D, and F have one-week lead times; B and E have lead times of two weeks. Lot-for-lot (L4L) lot sizing is used for Items A, B, C, and D; lots of size 50 and 180 are used for Items E and F, respectively. Item C has an on-hand (beginning) inventory of 15; D has an on-hand inventory of 50; all other items have zero beginning inventories. Construct :

a) simple product structure tree and the low-level-coded BOM

b) indented and the summarized parts lists.

Business   Operations-Management   
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Answer #1

0 1 2 3 4 5 6 7 8
Gross Requirement 0 0 0 0 0 0 0 20
Item A Scheduled receipt 0 0 0 0 0 0 0 0
OH=0 Proj. Available balance 0 0 0 0 0 0 0 0 0
LT=1 Net requirement 0 0 0 0 0 0 0 20
SS=0 Planned order receipt 0 0 0 0 0 0 0 20
Q=L4L Planned order release 0 0 0 0 0 0 20 0
Gross Requirement 0 0 0 0 0 0 40 0
Item B Scheduled receipt 0 0 0 0 0 0 0 0
OH=0 Proj. Available balance 0 0 0 0 0 0 0 0 0
LT=2 Net requirement 0 0 0 0 0 0 40 0
SS=0 Planned order receipt 0 0 0 0 0 0 40 0
Q=L4L Planned order release 0 0 0 0 40 0 0 0
Gross Requirement 0 0 0 0 0 0 60 0
Item C Scheduled receipt 0 0 0 0 0 0 0 0
OH=15 Proj. Available balance 15 15 15 15 15 15 15 0 0
LT=1 Net requirement 0 0 0 0 0 0 45 0
SS=0 Planned order receipt 0 0 0 0 0 0 45 0
Q=L4L Planned order release 0 0 0 0 0 45 0 0
Gross Requirement 0 0 0 0 40 0 0 0
Item E Scheduled receipt 0 0 0 0 0 0 0 0
OH=0 Proj. Available balance 0 0 0 0 0 10 10 10 10
LT=2 Net requirement 0 0 0 0 40 0 0 0
SS=0 Planned order receipt 0 0 0 0 50 0 0 0
Q=50 Planned order release 0 0 50 0 0 0 0 0
Gross Requirement 0 0 0 0 80 90 0 0
Item F Scheduled receipt 0 0 0 0 0 0 0 0
OH=0 Proj. Available balance 0 0 0 0 0 100 10 10 10
LT=1 Net requirement 0 0 0 0 80 0 0 0
SS=0 Planned order receipt 0 0 0 0 180 0 0 0
Q=180 Planned order release 0 0 0 180 0 0 0 0
Gross Requirement 0 0 100 0 0 45 40 0
Item D Scheduled receipt 0 0 0 0 0 0 0 0
OH=50 Proj. Available balance 50 50 50 0 0 0 0 0 0
LT=1 Net requirement 0 0 50 0 0 45 40 0
SS=0 Planned order receipt 0 0 50 0 0 45 40 0
Q=L4L Planned order release 0 50 0 0 45 40 0 0

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