This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
The term "inbound", when used in the context of two applications (client/server) communicating via JMS messages, refers to the client application sending a message to the server application.
In other words, the message that is sent from the client application is referred to as an "inbound" message. The message that is sent from the server application to the client application is referred to as an "outbound" message.