8. A company manufactures product Z using four basic components and performing two additional machining and three assembly operations. Components A and C are made by the company, and components B and D are purchased from vendors (The BOM for product Z is given in the figure 9a and 9b below). The product is made as follows:

   1. A unit of component A is machined and converted into component E.

   2. A unit of E is then assembled with two units of B to make F.

   3. A unit of C is machined and converted into G.

   4. A unit of A and three units of D are assembled into H.

   5. One unit of F, two units of G, two units of H, and four units of B are then assembled into product Z.

   1. a) Construct a product structure tree for product Z.

   2. b) Construct a production time chart for product Z.

c)

Derive the material requirements plans for product Z and components F and E using lot-for-lot procurement, assuming the requirements for product Z (from the master production schedule) are as follows:

week	1	2	3	4	5	6	7	8	9	10
requirement	0	0	0	0	0	0	200	0	0	300