Glossary

Both the JMS- and MQSeries- related terms defined here are used throughout this document.

Broker

A WebSphere MQSeries process that performs subscription resolution in a pub/sub model.

Channel

A WebSphere MQSeries object that is a logical communication link.

Durable subscription

A TIBCO JMS subscription that retains messages while the client is not connected.

JMS

TIBCO Java Message Service.

Messaging client

A TIBCO JMS program that produces or consumes messages.

MOM

TIBCO JMS message-oriented middleware.

MQ

WebSphere MQSeries Message Queue messaging system.

MQ Publish/Subscribe

WebSphere MQSeries publish-and-subscribe function.

MQI

WebSphere MQSeries Message Queue Interface programming API.

MQM

WebSphere MQSeries Message Queue Manager process that manages a queue.

Nondurable subscription

A TIBCO JMS subscription that retains messages only while the client is connected.

Queue

In TIBCO JMS, a domain for point-to-point messaging.

In WebSphere MQSeries, an object that stores sent messages.

Payload

A WebSphere MQSeries message body.

Publication

In WebSphere MQSeries, the information that is sent by a publisher.

Publisher

In WebSphere MQSeries, the sender in a publish/subscribe model.

RF Header

The WebSphere MQSeries rules and formatting header used by MQ pub/sub. All messages sent to the MQ pub/sub broker or to the stream queue must have a RF Header. The RF Header conveys control information to the MQ pub/sub broker. In MQ pub/sub messages, the message payload contains a RF Header, followed by the application data.

RFH

The WebSphere MQSeries rules and formatting header; the portion of the message header that provides rules and formatting information for that message

Service provider

A TIBCO JMS message provider. For instance, TIBCO JMS is a service provider, called a messaging provider in this document.

Stream

In WebSphere MQSeries, the grouping of related MQSeries topics.

Subscriber

In WebSphere MQSeries, the receiver in a publish/subscribe topology.

Subscription

A TIBCO JMS domain for publishing or consuming one-to-many messaging.

Topic

In TIBCO JMS, similar to queues in, but used for one-to-many messaging.

In WebSphere MQSeries, the subject of a publication. WebSphere MQSeries pub/sub topics and JMS topics are different. In JMS, a topic is a pub/sub endpoint, whereas in WebSphere MQSeries pub/sub, a topic is a subject of a message.

WebSphere MQSeries pub/sub topics and JMS topics are different. In JMS, a topic is a pub/sub endpoint, whereas in WebSphere MQSeries pub/sub, a topic is a subject of a message.