A new version of this guide went live – I think something, you should look at. There is a metrology and a process in detail:
So, if you want to learn more: http://technet.microsoft.com/en-us/library/cc162838.aspx
Roger
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Roger Halbheer
Roger Halbheer is an Executive Security Advisor at Microsoft in EMEA acting as a trusted advisor to CxO. Before that he was a Managing Director at Accenture's Financial Services. Before joining Accenture, he was the Chief Security Officer of Swisscom (Switzerland's largest telecom provider) and the global Chief Security Advisor for Microsoft.