Problem: An office furniture manufacturer produces office chairs. The bill of materials consists of the following items with lead times in parentheses (in days). The finished chair consists of a seat (5), a back rest (5), a wheel stand (2), 2 armrest assemblies (2) and a frame (3). The wheel stand consists of a stand (2) and 4 wheels (0). The armrest assembly consists of an armrest (2) and a support bracket (2). The finished chair has a lead time of 4.
1. Specify the BOM table with component name/ID, level, parent-child association, quantity, and lead time. You may specify the parent-child association via row locations (as the example) or a field listing the parent.
2. Draw a hierarchy diagram for the BOM.
3. What is the longest manufacturing lead time?
4. At day ?? =5, there are 125 chairs in inventory, with no scheduled receipts.
Demand (gross requirements) in ?? =6 is 150. What are net requirements and inventory for ?? =6, as well as the associated timed requirements (quantity and period)?
5. How does the previous solution change if there are scheduled receipts of 50 in period 5? How about if the scheduled receipts are 50 in period 6?
6. Assume no scheduled receipts for chairs and no beginning inventory or scheduled receipts for wheel stands. What are gross requirements for wheels and for armrest assemblies (quantity and period for both)?