Greg Leake is very passionate about loosely-coupled service-oriented n-tiered application architecture. He has created an impressive service-oriented application called StockTrader. We will be highlighting his great work over the coming days with a four part mini-series on StockTrader. Most of the series will be comprised of demos of StockTrader in action and explanations of what's going on behind the scenes in this truly exemplary example of how to create a powerful client-server application that is based on a loosely-coupled service architecture. Further, the interoperability story here is excellent (one of the great advantages of standards-based protocols...). This is Part 1: An Architectural Overview of Stocktrader.