What is a component architecture?
Today, applications are hand crafted, one at a time, the same way that machines were built before the Industrial Revolution. According to IDC, 97% of Web applications are built by hand. The Industrial Revolution introduced the idea of interchangeable parts. The idea behind component architectures is the same: Software should be constructed from interchangeable software components. For example, an e-commerce application can be assembled from standard components, including product catalogs, shopping carts, and credit card processing. Component architectures not only make software easier and faster to build, they also make software more reliable, secure, and scalable. The first widespread component architecture was CORBA; competing component architectures were introduced by both Microsoft and Apple. Spin is based on the JavaBeans component architecture. JavaBeans have several crucial advantages over other component architectures. These advantages are what made it possible to build Spin ou