The main reason are: - lower the maintenance cost of our software: avoid to maintain common, portlet container, wsrp into several branches. Instead have portal common 1.0, portlet container 1.0, etc... - decouple the life cycle of software: for instance the CMS today does not need much development except bug fixes, then why should we keep it in jboss-portal-2.6, jboss-portal-2.8, etc... ? if I want to add a new feature to the portlet container and keep a stable version in jboss-portal-2.6 and jboss-portal-2.8 then I don't have to create an additional branch for it and merge it later. - lower the cost of a release by using already tested components. No need to run the CMS testsuite if we use jboss-portal-cms 1.0 which has been already gone through QA. - increase reuse of our components at the JEMS level and prepare the MC migration. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4074047#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...