EMS systems are facilitated by the use of structured messages (such as using XML or JSON), and appropriate protocols, such as DDS, MSMQ, AMQP or SOAP with web services.
EMS usually takes into account the following considerations: EMS are also known as Message-Oriented Middleware (MOM)[2] The design of an EMS is usually broken down into two sections: The commonalities between messaging systems (in terms of capabilities and architecture) have been captured in a platform-independent fashion as enterprise integration patterns (a.k.a.
Note that an Enterprise Messaging System should not be confused with an electronic mail system used for delivering human readable text messages to individual people.
Although this is an API it embodies many of the same issues involved in setting up a full EMS.
These policy statements can be expressed in the XML Access Control Markup Language (XACML).