5.2 Mediator Architecture

The mediator architecture transforms local XML documents into documents based on a global schema.

	Figure 5.1 below illustrates this architecture with a few sample information services-Customer Data, E-business
	System, Request Logging and Analysis Service that a client might access.

Figure 5.1 Mediator architecture for adaptive service-based information systems with sample information services

5.2 Mediator Architecture

	The data integration engine is built based on a composition of individual services using WS-BPEL, where
	component invocation orders are predefined in the integration schemas.

These service orchestrations are defined by specifying the order in which operations should be invoked.