Classifying your services into different types is an important part of SOA governance. A common classification is based on granularity and the ability of services to be combined into larger ones. Combining components into larger objects is a natural way of thinking. Consider the assembly of car parts such as tires and engines from small components and the assembly of entire cars from these car parts. This is a natural way of differentiating between screws and bolts, cylinders, and an entire Volkswagen. This session explains service classification and how service types are mapped onto the various products in the Fusion Middleware stack. A reference architecture is presented to show how Fusion Middleware supports these different service types.