3. A method according to claim 1 wherein constructing the concept comprises identifying a plurality of terms related to the respective search term based upon the string matching and constructing the concept associated with the respective search term incorporating at least some of the terms related to the respective search term.
3. A method according to claim 1 wherein constructing the concept comprises identifying a plurality of terms related to the respective search term based upon the string matching and constructing the concept associated with the respective search term incorporating at least some of the terms related to the respective search term. 5. A method according to claim 3 wherein constructing the concept comprises receiving input indicating the terms to be incorporated within the concept associated with the respective search term prior to conducting the search of the one or more data sources.