CTU - EDI is a teaching simulation software which simulates the whole process of foreign trade, providing students with the real conditions where they study how to use EDI in the activities of foreign trade.

• CTU-EDI是一个利用电子数据交换完成对外贸易的教学模拟软件；它模拟了卖方向买方出售商品这一贸易过程中的各个环节；为学生学习EDI如何应用于对外贸易活动提供了较为真实的环境.