Hi, I have added a summary file that shows all the queries made to the top level BDII over a short period of time. http://forge.gridforum.org/sf/sfmain/do/downloadAttachment/projects.glue-wg/... I hope that this will be useful for the use case document as this shows what is really being used in the information system. If anyone has similar information it would be good to also add it. Laurence