Applicability Statement 2
Applicability Statement 2 (AS2) is a specification for data exchange, to perform the task of sending and receiving data via a secure connection. It works as a kind of "envelope," in which data is embedded, so that it is possible to send it using the HTTP-protocol. It is a quick and direct transfer, without using a mailbox. AS2 is able to transmit every kind of document and it��s suited especially for the traditional EDI transactions. The data to be sent will be prepared by internal systems and will be transferred via an AS2 communication software.
[Source: Adapted from AS2 (Applicability Statement 2): Description and Parameter, EDI-AKH]