Management of plant audit and sourcing and QC inspection. Management of shipment and logistic.Like at first when get indication from the employer on sourcing one product, Can search on internet like 1688 and alibaba.com to search by different keywords similar to the products and make comparison in prices and quality and the delivery distance and shipment time. After production is finished the QC inspection according to the AQL form will be performed. Certainly the semi finished parts will also be inspected.