Patch Bay is represented in Nucleus as the component /atg/dynamo/messaging/MessagingManager, which is of class atg.dms.patchbay.PatchBayManager. As with all Nucleus components, Patch Bay is configured with a properties file. The properties file controls the general behavior of the Patch Bay system; it configures such things as the transaction manager used by Patch Bay and logging behavior.

In addition to the properties file, the MessagingManager uses an XML file called the DMS configuration file to configure the individual parts of the Patch Pay system, such as JMS providers, message sources and sinks, and destinations. The definitionFile property of the MessagingManager component names the DMS configuration file. (In some places, the DMS configuration file is also referred to as the Patch Bay definition file.) See Configuring Patch Bay for more information.