What about Oracle AIA?

AIA is an integration mechanism – it’s a bunch of Oracle products designed to support integration across a wide range of Oracle applications, as well as non-Oracle applications.
In simple words: A smart integration mechanism, that can support & integrate the whole bunch of oracle products with EBS or non-EBS products (like SAP) and in this middleware is used to stitching.
This is a framework in which the functionality of Oracle's vast application portfolio - Oracle E-Business, PeopleSoft, Siebel, and JD Edwards - can be recombined and tailored to enterprise needs.
Oracle AIA seeks to simplify this process and make it more seamless - and far less costly.
Technical products inside AIA:
1.    Siebel
2.    Adapters
3.    Oracle Warehouse Builder
4.    BPEL Process Manager
5.    BPEL Repository
6.    E-Business Suite