Application-to-Application (A2A)

A2A services facilitate the exchange of business information between different applications to connect business processes, within company borders.

Business-to-Business (B2B)

B2B services facilitate the exchange of business documents across company borders.

Application-to-Cross Application (A2X)

A2X services facilitate the exchange of business information between an application and an unspecified client. They are often used to build user interfaces (UIs) based on the back-end, without an intervening communication layer. For this reason, A2X messages contain all the necessary information for understanding the message, such as code names or texts to be displayed on the UI.