Rather than using costly and restrictive electronic data interchange formats on value-added networks, companies can set up extranets for an open dialogue between customers and suppliers over the Net.

• 各公司可以在因特网上为客户和供应商之间建起用于开放对话的内扩网，而不是在增值网上使用既费钱又受限制的电子数据交换格式。