Thoughts from the Integration Consortium: Web Services-Based Integration, Part I | DM Review | Industry Led, Industry Read
Second, Web services can be used to expose business and application logic in a standardized way that makes it easy for any other Web services to consume.
I’m posting this for reference.
What about treating each of the data sources as a “Web Service”? The abstraction process seems to be similar to what we need to do when moving data into information.