This guide was designed to help IT professionals better understand and use Microsoft security release information, processes, communications, and tools. Our goal is to help IT professionals manage organizational risk and develop a repeatable, effective deployment mechanism for security updates.

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=c3d986d0-ecc3-4ce0-9c25-048ec5b52a4f

-Urs