Assume that product Z is made up of two units of A and four units of B. A is made of three units of C and four D. D is made up of two units of E.
Lead time for purchase or fabrication of each unit to final assembly are: Z takes two weeks; A, B, C, and D take 1 week each; and E takes three weeks.
Fifty units are required in Period 10. (Assume that there is no current inventory on hand of any of these items.)
a. Show the bill of materials (product structure tree).
b. Develop an MRP planning schedule showing gross and net requirements, order release and order receipt dates.