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 各公司可以在因特網上為客戶和供應商之間建起用于開放對話的內擴網,而不是在增值網上使用既費錢又受限制的電子數據交換格式。
百科解釋
A Value-added Network (VAN) is a hosted service offering that acts as an intermediary between business partners sharing standards based or proprietary data via shared Business Processes. The offered service is referred to as "Value-added Network Service".