Ivan, Here are some thoughts about how to change current data storage design. /Susanne -------------- next part -------------- A non-text attachment was scrubbed... Name: Suggestions for data storage improvements.doc Type: application/msword Size: 962560 bytes Desc: URL: <http://lists.mcs.anl.gov/pipermail/ag-dev/attachments/20030611/69f00d25/attachment.doc>