This presentation is a short abstract from my diploma thesis in order to communicate in brief the motivation of my thesis as well as the main points of the vision for a unified web that stands between the closed world assumption and the open world assumption environments. For more details please visit the online profiles of the projects stated within this presentation: XS2OWL http://www.music.tuc.gr/projects/sw/xs2owl/ SPARQL2XQuery http://www.music.tuc.gr/projects/sw/sparql2xquery/