Second System Structure

During the weekly meeting with Dr.ShiPing Chen. We showed him our initial design for the TPC-C System Structure. Most of our initial design are good but some part of the structure are not meet the project requirements. And he gives us some very valuable opinions such as automatically log result inside TPC-C back-end server is not necessary in stead of to log result if we get more time left at the end we can do the optional part to develop web Service to hold the TPC-C server.And it should be done the same job as EJB to send users' transaction requires to the TPC-C server associate with database.
The illustrate shows below is our Second System Structure after meeting: