  The current generation of Grid infrastructures designed for production
activity is strongly computing oriented and tuned on the needs of applications
that requires intensive computations. Problems arise when trying to use such
Grids to satisfy the sharing of data-oriented and service-oriented resources as
happens in the IVOA community. We have designed, developed and implemented a
Grid query element to access data source from an existing production Grid
environment. We also enhanced the Grid middleware model (collective resources
and sites) to manage Data Sources extending the Grid semantic. The query
element and the modified grid Information System are able to connect the Grid
environment to Virtual Observatory resources. A specialized query element is
designed to work as Virtual Observatory resource in the Grid so than an
Astronomer can access Virtual Observatory data using the IVOA standards.
