A trading partners:- a trading partner is an organization who uses EDI. They are assigned a trading partner ID number which is their generic “customer number”. If you decided to use EDI, you will register your company with your service provider (VAN) who will provide with a trading partner.
B VAN:- it is a service provider which stores your EDI mail form your trading partners and transmits your EDI documents to your trading partner’s mailbox.
C transaction software:- software used to send & service EDI documents within VAN.
Global / DX:- this modules takes the output from the transaction software & creates necessary transactions and also creates files trading partners.