The document "Grid and Virtualization - Use Cases" has been revised and extended by me. Please see http://forge.gridforum.org/sf/go/doc14311. Now it describes the model we assume for our work. This is basically the textual explanation of the slides presented on last OGF and the reasoning behind these assumptions. The runtime use cases (Resize System and Live Migration) have been refined. Furthermore, a first attempt has been taken to specifiy a programming interface between the Grid management entities and the virtualization platform manager. Your comments are highly appreciated. Regards, Wolfgang Wolfgang Reichert Senior Technical Staff Member ??? SAP on IBM Systems ??? Mail: w_reichert@de.ibm.com IBM: +49-7031-162185 / Fax: -163545 SAP: +49-6227-764084 IBM Deutschland Entwicklung GmbH Vorsitzender des Aufsichtsrats: Martin Jetter | Geschäftsführung: Herbert Kircher Sitz der Gesellschaft: Böblingen | Registergericht: Amtsgericht Stuttgart, HRB 243294