Hi, there is new version of the document with the changes done by Roberto Pugliese, http://forge.gridforum.org/sf/docman/do/downloadDocument/projects.ari-wg/doc... Please make your updates/changes/suggestions on that version Thanks Roberto! cheers marcin -- Marcin Plociennik Poznan Supercomputing and Networking Center 61-704 Poznan, ul. Noskowskiego 10 POLAND phone (+48 61) 8582181 e-mail: marcinp@man.poznan.pl