About Siebel EAI and Legacy Systems

In an encapsulated environment, multiple similar legacy applications are rationalized through the construction of high level APIs that hide underlying complexity. The following image illustrates how message oriented middleware can help a business perform transaction decomposition, data mapping, legacy sequencing, and result aggregation. With Siebel EAI, the Siebel Business platform generates and processes the high level request and response messages that are expected by the encapsulated environment. Examples of message oriented middleware include:

IBM MQSeries Queue Manager and MQSeries Integrator
A custom development environment that is based on Enterprise Java Bean, such as IBM WebSphere

Legacy Encapsulation. In this image, Call Center Agent (connected), Customer/Partner (self-service), and Account Manager (mobile) connect with Siebel Business Application over the Intranet/Internet. Siebel Business Application connects with Adapters (HTTP, MQ Series, MSMQ, SAP IDOC, SAP BAPI). Adapters connect with Third-Party Middleware, which in turn connects with Legacy Encapsulation/Applications (Facility Assignment, Provisioning System, Service Activation, Billing System, Address Validation, Others).