24. A computer program as in claim 23 wherein each of said conceptual models comprises a generic conceptual model in a uniform language.
24. A computer program as in claim 23 wherein each of said conceptual models comprises a generic conceptual model in a uniform language. 26. A computer program product as in claim 24 wherein the computer program instructions when executed further cause the computer to provide a plug-in for converting between one of the plurality of data source's semantic formalism and said uniform language of said generic conceptual model.