Product A is made of one unit of C, two units of D, and one unit of E. Product B is made of one unit of E and one unit of F. Item F is made of one unit of D and two units of G. The shipping (i.e., gross) requirements for A and B are given below:
Item 1 2 3 4 5 6 7 8
Product A 40 50 30 10 30
Product B 40 25 35 20 20
a. Draw product structure trees for A and B.
b. Develop the MRP schedule for all items given the following information:
Item Present on hand Lead time Lot-size rule
A 50 1 week L4L
B 75 1 week L4L
C 80 2 weeks L4L
D 100 1 week L4L
E 20 1 week L4L
F 0 2 weeks FOQ of 60 units
G 5 1 week FOQ of 50 units