IntroductionAn application programmer spends six months perfecting a set of components commonly needed in the large company that employs him. Some of the components were particularly tricky and key pieces required very high quality, reliable and complex exception handling. It has all been tuned to run quickly and efficiently. Thorough testing has demonstrated his success. Part of his idea of “perfection” was to build in a way that the software, even many of the individual components, could easily be reused. But it is surprisingly likely that no one outside of a small group within the project will ever hear of...