Question

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.

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