DMD makes specialty bikes. The manager used to order enough bike parts for four months€™ "worth of production, but parts were stacked all over the place, seriously reducing work space and hampering movement of workers. And no one knew' exactly where anything was.
The manager heard about MRP, and wants to use it. DMD makes two types of bikes: Arrow and Dart. The manager wants to assemble 15 Arrow's and 10 Darts each week from weeks 4 through 8. The product structure trees for the two bikes follow.

He has collected the following information on lead times, inventory on hand, and lot-sizing methods (established by suppliers anchor DMD):

Scheduled receipts are:
Week 1: 20 Arrow's, 18 Ws
Week 2: 20 Darts, 15 Fs
Develop the material requirements plans for all the items.

Arrow Dart K M W K(2) F WI2) Q Lot-Sizing Item Lead Time (weeks) On Hand Method 5 Lotfor-dot 2 Lotforlot Arrow Dart Q = 25 2* 2 Muliples of 12 uiples o Multiples of 30 2 10 3 15 Lot-for-lot Q = 30 O Lotfor-lot