Dear sirs, i have a few questions about the portal.
We have 3 webapp developed with JSF , and JBossAS witch both of them have realm authentication.

1. Should we put the portal on top of them and act as a gateway to them ?, performance problems ? it is a good thing to do ?
2. And what modifications to the apication should we need to do ?, and about common authentication.

Thanks a lot in advance, and excuse my english.