dolution

the demand for product S is 150 units at the start of week 6.

Each product S needs 2 units of T and 3 units of U. Each unit T needs 2 units of V, one unit of W, and 4 units of X. Each unit U needs 3 units of Y and 1 unit of X.

One company manufactures all the items. S’s delivery time is one week, T is 2 weeks, U is 2 weeks, V is 2 weeks, W is 3 weeks, X is one week, and Y is 2 weeks

a.plot the product structure with the lowest level coding

b. draw the graph of the time horizon covering the cumulative lead time of production and structure of the product

c. taking into account stock on hand, draw up a material requirements planning according to a batch-for-batch policy

d. more than 150 units of S at the start of week 6, there is a demand for 50 units of U, which is a component of S. The 50 units are required for maintenance reasons. These 50 units must be delivered at the start of week 4. Revise your MRP accordingly.

e) Is there a workable solution in part d)? Justify your answer. If there is no workable solution, give a recommendation on how it can be made workable