Question: 12 (This problem is intended as a very simple exercise to go from the aggregate plan to the mas- ter schedule to the MRP.) Gigamemory

12 (This problem is intended as a very simple exercise to go from the aggregate plan to the mas- ter schedule to the MRP.) Gigamemory Storage Devices, Inc., produces CD-ROMs (read only memory) and WORMS (write once read many) for the computer market. Aggregate demand for the WORMS for the next two quarters is 2,100 units and 2,700 units. Assume that demand is distributed evenly for each month of the quarter. There are two models of the WORM: an internal model and an extemal model. The drive assemblies in both are the same, but the electronics and housing are different. Demand is high- er for the external model and currently is 70 percent of aggregate demand. The bill of materials and the lead times follow. One drive assembly and one electronic and housing unit go into each WORM.

WORM LT = 1 month Drive assembly Electronics LT = 3 months

The MRP system is run monthly. Currently, 200 external WORMS and 100 intemal WORMS are in stock. Also in stock are 250 drive assemblies, 50 intemal electronic and housing units, and 125 external electronic and housing units. Problem: Show the aggregate plan, the master production schedule, and the full MRP with the gross and net requirements and planned order releases.

WORM LT = 1 month Drive assembly Electronics LT = 3 months LT=2 months and housing

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