The PowerCenter Integration Service can read and write messages with the point-to-point (PTP) or publish-subscribe domain.

The PTP domain means that JMS providers store messages in a message queue. The PowerCenter Integration Service reads messages from the JMS provider message queue. It writes messages to a JMS provider message queue.

The publish-subscribe domain means that JMS providers read and write messages with the message topic as the address. When the PowerCenter Integration Service reads messages, it receives messages with a particular message topic from the JMS provider. When the PowerCenter Integration Service writes messages, it writes messages with a particular message topic to the JMS provider.