11. A system according to claim 10, wherein the a series of transformation performed in the performing means includes operations such as retain, duplicate, merge, constrain, and restrict.
11. A system according to claim 10, wherein the a series of transformation performed in the performing means includes operations such as retain, duplicate, merge, constrain, and restrict. 13. A system according to claim 11, wherein the duplicate operation includes duplicating classes and associations that specify the query.