Ngoài ra, nếu một mục với một giao hứa sẽ đi ra khỏi lịch trình và không thể được đưa trở lại đúng tiến độ, khách hàng có thể được thông báo một cách kịp thời để họ có thể xem xét lại kế hoạch của họ với sự bất tiện tối thiểu. Mặc dù MRP dường như được đánh giá cao mong muốn, | Page 115 telephone and visit costumers of the supplier. The supplier will give you a list but try to find other customers in the event the supplier-furnished contacts are the only satisfied customers. Ask the customers on the list for others to contact as a check. It is also prudent to try to obtain a representative sample and remember all organizations experience some delivery problems so look for the realistic batting average. If your requirements are extremely high for a JIT operation then delivery transportation packaging and materials handling capability must be thoroughly Purchasing Expertise Does the prospective supplier have an adequate source of required raw materials and purchased components Is adequate and effective competition obtained Are there special relations with certain companies and affiliates Does the prospective supplier determine financial quality assurance and other capabilities of his or her prospective key suppliers and subcontractors Does the potential supplier follow modern purchasing practices and employ qualified purchasing personnel Is there good documentation of materials inventory and work-in-process WIP Price Cost Controls and Documentation With the trend to single sourcing the qualification process should be even more demanding and in particular the analysis of the supplier s cost structure must be more Using industry averages buyers must review detailed and documented cost breakdowns furnished by the supplier. Such ratios as material to labor and sales and general and administrative costs should be compared to industry averages and target figures. Confident suppliers will give these data to buyers provided nondisclosure statements are signed. Total quality control learning curve analysis value analysis equipment modernization and cost control programs are essential to improving productivity. The buyer or sourcing team must see the evidence of such efforts through plant tours submission of questionnaires and
