IG A10 Simple Manufacturing Plant PF≡ Parts Fabricati Raw materials Warehouse focus of this lecture) QA Quality assurance PF1 PFn Energy OA1 QAn Scrap . Emissions Supplied parts SupplierParts Buffer Buffer abor Assembly Money Finished Inspection Goods 16.810(16682) Massachusetts Institute of techno ology it16.810 (16.682) 6 Simple Manufacturing Plant Warehouse PF1 … PFn QA1 … QAn Parts Buffer Supplier Buffer Assembly Final Inspection Finished Goods PF = Parts Fabrication (focus of this lecture) QA = Quality Assurance Raw Materials Energy Supplied Parts Labor Money Sales Scrap Emissions