The ITIL framework doesn't outline specific steps that businesses must follow, but it shares with IT professionals best practices that they can customize to their organizations. Outside of ITIL, other IT Service Management approaches and frameworks exist, including the Enterprise Computing Institute's library covering general issues of large scale IT management, including various Service Management subjects. The IT Infrastructure Library originated as a collection of books each covering a specific practice within IT Service Management.
Configuration Management is a process that tracks all of the individual Configuration Items (CI) in a system. IT Service Management provides a framework to manage IT processes in an efficient and effective manner. Army ITIL Program A minor upgrade or release usually supersedes all preceding emergency fixes.
Forward Schedule of Changes (FSC): schedule that contains details of all the forthcoming Changes. Core Practice (CoPr or "copper") calls for limiting Best Practice to areas where there is a business case for it, and in other areas just do the minimum necessary.
ITSM is generally concerned with the "back office" or operational concerns of information technology management (sometimes known as operations architecture), and not with technology development.