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  1. Preface
  2. Understanding Data Types and Field Properties
  3. Designing Processes
  4. Using and Displaying Data
  5. Designing Guides
  6. Designing Process Objects
  7. Designing Service Connectors
  8. Using Connectors
  9. System Services, Listeners and Connectors

2. Design

2. Design

Using Java Message Service (JMS)

Using Java Message Service (JMS)

A Java Message Service (JMS) enables messaging between loosely-coupled processes. "Loosely-coupled"-for purposes of messaging-means the messages are independent of one another. The interaction between the processes can be synchronous or asynchronous.
If the process sends a message while the message consumer is not running, the message waits in the JMS provider's queue until the message consumer is available. The contents of these messages can vary, but the data within the message is usually expressed as XML.
Taking advantage of the data flow that occurs with JMS, you can eliminate the need to invoke a service such as a database management system that runs on-premise.