Provide a synopsis of it and explain how it helps security or audit functions

Provide a synopsis of it and explain how it helps security or audit functions. It should show your analysis and  and is generally 1 or 2 pages

http://www.isaca.org/Journal/Past-Issues/2007/Volume-2/Pages/What-Every-IT-Auditor-Should-Know-About-Auditing-Information-Security1.aspx