3.17. Product A is an assemble-to-order product. It has a lot size of 100, and currently has an on-hand inventory of 30 units. There is a 1-week demand time fence and a 12-week planning time fence. The following table gives the original forecast and the actual customer orders for the next 12 weeks:

Week 1

2 3

4 5

6 7

8 9

10 11 12 Forecast 40 50 50 60 60 60 70 70 55 55 55 55 Demand 40 52 70 65 67 45 50 50 56 53 52 44

a. Given this information, develop a realistic master schedule, complete with ATP logic.

b. How you would respond to each of the following customer order requests? Assume these are independent requests, and do not have cumulative effects.

■ 10 units in week 3

■ 30 units in week 4

■ 10 units in week 9