EDI is the electronic communications or exchange of business transactions between business organizations. It entails computer-to-computer communications directly to order systems and vendor databases. In the year 1996, the NIST defined EDI as a computer-to-computer transaction of severely formatted information representing documents rather than financial instruments. It means exchange of a series of messages between two or more parties, whereby one serves as a sender and the one a receiver (Zainol 2009, p. 256). The originator transmits the formatted data that represent a document to the receiver through physical transportation on electronic media storage such as CDs or USB Flash disks or via telecommunication (Zekos 2008, p. 67).