HomerJ is a tool to facilitate the Management of the Information contained in documents XML. It uses SQL, the same language that is used by the database servers standard. It combines the flexibility and capacity to store to information of the XML with the power of a simple query language, clear and universal like the SQL. This article present the stages of their development, tools and the subsystems. Collaborators: Broglino, Florencia; Chiara, Laura; Dieguez, Romina; Farías, Martín; Fernández, María Laura; Fionda, César; Gómez, Estela; Ledesma, Máximo.