Hi again, here are the rest of requirements mapped to ARC, EGI and GROMACS use cases: ARC ----- Info: 1, 4, 6 Security: 9, 28, 29, 30, 32, 11 NF: 145, 146, 148, 149, 150, 156, 160 EGI ---- Accounting: 36 Info: 1, 4, 6 Security: 9, 17, 20, 21, 22, 23, 28, 29, 30, 32, 11 NF: 145, 146, 147, 148, 149, 150, 156, 160 GROMACS ------------- Info:1, 4, 6 SecurityL 28, 29, 11 NF: 148, 149, 156 I have to note that I did not prioritize requirements, because they can not be compared: there is no way to argue that e.g. a requirement of traceability is more or less important than that of using SOAP. I also should say that I noticed no duplicates, at least no obvious ones. And, the level of requirements varies really a lot, from extremely generic to extremely specific, which again prevents comparison. Cheers, Oxana