Complex sentence: Additionally, federated search provides a singular search interface to numerous underlying deep Web data sources; thus reducing the burden on the search patron by not requiring knowledge of each individual search interface or even knowledge of the existence of the individual data sources being searched.
Split into simpler sentences: Additionally, federated search provides a singular search interface to numerous underlying deep web data sources. This reduces the burden on the search patron by not requiring knowledge of each individual search interface or even knowledge of the existence of the individual data sources being searched.