RichFaces is a UI framework & components library built over JavaServer Faces (JSF). Seam is a framework that greatly enhances developer productivity on all tiers bringing set of UI components, extended scopes including conversations, transactions management and many more features (refer to the documentation). Also Seam is not limited to RichFaces/JSF, you can use Wicket or another JSF component library.
If you are starting with JavaEE6, take a look at Weld: http://seamframework.org/Weld
thanks for the informations. So it's look that Seanm is what I'm looking for. So if I'm started with my testing I'll open sure a new Thread in this forum .