the traditional transportation can provide, with limitation, the simple service of sea freight (exports or import), airfreight, railway or highway to the customers. after entering the 21 century, it has developed to be an electronic era (e-era) with the fast service of the internet, e-commerce and e-banking. without the electronic service, a company can hardly exist, but the service of electronics is not the panacea for occupying the market share. the starting of e-era has not only changed the management models of enterprises,but also improved the company's relationships with suppliers and customers by