Exchange data model

This figure below presents the notion of exchange that is a main concept of SOA paradigm.
A exchange is composed of information to route exchange such as source address, destination endpoint and service name. It can also contains other metadata information to manage non-functional global contexts.

During the lifecycle of an exchange, it is composed of one or several messages:

A message contains these following items:

  • An header: That contains meta-data to manage the routing of exchange or others non-functional aspects such as security, reliability or transactional features.
  • A body: That contains the xml payload of client request or provider response.
  • Attachements: That contains all attachments provided with the messages.

The model of this exchange is represented below:

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