摘要：Providing and maintaining a competitive advantage especially depends not only on understanding the value chain of the company, but also its inclusion in the overall value system. The value chain of a company is only part of a broader set of value-added activities, i.e. the value system. Therefore, the value chain of the company shall be understood more as a part of a system that relates and other value chains of suppliers, customers and competitors. Value chains of companies in a particular field of activity are different from each other, depending on each company's history, the strategy adopted by successful implementation
关键词：the value chain; cost; competitive; technology
