The IBM® SOA Policy Gateway Pattern parts are the functional components of the pattern. Each part represents a single virtual machine. A pattern provides a topology definition for repeatable deployment that can be shared.
Patterns describe the function provided by each virtual machine in a virtual system. Each function is identified as a part in the pattern. Patterns take on the characteristics of their associated parts. For example, when a WSRR part is put into a pattern, which is then deployed, the result is a virtual machine that has a running WSRR instance.
Parts describe the components that are configured on a virtual machine. Each part has a set of properties (parameters) that are used during deployment to help define the overall configuration of the virtual system. When you load the IBM SOA Policy Gateway Pattern images onto IBM Workload Deployer, the parts are included.