Getting a grasp on ITIL

[stewartjohnson]

Hi All -

I'm relatively new to ITIL, and I want to make sure I have an accurate picture of what ITIL is. I was hoping the experienced folks here could verify my current understanding.

It seems to me that:

• ITIL defines a set of processes that should occur within a mature IT organisation in order to have adequate control over the delivery of IT services.
  
• ITIL doesn't provide formal process definitions, though it does detail the key features that those processes should have. (e.g.: inputs, outputs and roles).
  
• ITIL doesn't define methods for moving from an organisation's current maturity level to the ideal maturity level. i.e.: there is no material detailing which process group should be tackled first, or how an organisation could self-assess to determine which areas would benefit the most from the introduction of an ITIL-based process.
  

Is that accurate? Any corrections or further information is most welcome.

Thanks,
Stewart