The jBPM designer and viewer will let you design and view in a nice way your business processes and your pageflows. This convenient tool is part of JBoss Eclipse IDE and more details can be found in the jBPM's documentation

38.1.1. Business process designer

This tool lets you design your own business process in a graphical way.

38.1.2. Pageflow viewer

This tool let you design to some extend your pageflows and let you build graphical views of them so you can easily share and compare ideas on how it should be designed.