Use processScope in ADF faces

Today, I read a good article about how to use the processScope feature in Oracle JSF implementation: ADF faces.

The processScope is not a standard feature in of JSF, but is added by Oracle to overcome the problems with using the request or session objects to pass data between pages.

Currently, I'm playing with EJB3.0 and JSF and I certainly going to use the processScope to implement master-detail pages.