In Marinescu:s "EJB Design Patterns", he mentions the Session Facade Pattern as a means to increase performance (through decreasing network load), as access to EB becomes restricted through SSB. Although, I found a white paper (http://www.cs.rice.edu/CS/Systems/DynaServer/perf_scalability_ejb.pdf
) where they test different configurations/patterns and their performance, and in this test the Session Facade Pattern performs worse than a CMP implementation! How can this be? Is it impossible for a SSB access EB by other ways than through a network call, even if they exist on the same server? Sorry if this is a FAQ, but I'm just starting to learn J2EE/EJB.