This perspective helps you develop user-defined nodes in the Message Broker Toolkit. A user-defined node is an Eclipse plug-in that adds a category of nodes to the Message Flow editor palette.
The New Plug-in Project wizard creates the supporting workbench files for your user-defined node. The New Message Flow Plug-in Node wizard creates a message node file (.msgnode) and launches the Message Node editor for developing the visual representation of your user-defined node in the Message Broker Toolkit.
The following figure shows the Plug-in Development perspective in the Message Broker Toolkit.