About the technology author(s): Paul Fremantle is a WebSphere expert working for the IBM Software Group EMEA. Mr. Fremantle holds an M.A. in Mathematics and Philosophy from Balliol College, Oxford University, and an M.Sc. in Computation from the Oxford University Computing Laboratory. For his thesis, he built an automatic theorem prover for the Z specification language. Before working for the software group, Mr. Fremantle worked in IBM Global Services as an Internet solution architect. He has published articles on WebSphere and EJB interoperability in print and on the Web.