Figure 14.12 . 14.10 a) Given the product structure and master production schedule (Figure 14.12 below), develop a gross requirements plan for all items. b) Given the preceding product structure, master production schedule, and inventory status (Figure 14.12), develop a net materials requirements (planned order release) for all items. Figure 14.12 . 14.10 a) Given the product structure and master production schedule (Figure 14.12 below), develop a gross requirements plan for all items. b) Given the preceding product structure, master production schedule, and inventory status (Figure 14.12), develop a net materials requirements (planned order release) for all items