ITIL 3

The ITIL Toolkit is very widely employed. Since its inception, ITIL has become a world-wide de facto standard for best practices in IT service management. Many of the concepts did not originate within the original UK Government's Central Computer and Telecommunications Agency (CCTA) project to develop ITIL.

The Service Delivery discipline is primarily concerned with the proactive and forward-looking services that the business requires of its ICT provider in order to provide adequate support to the business users. The high-level activities are Application Sizing, Workload Management, Demand Management, Modeling, Capacity Planning, Resource Management, and Performance Management. ITIL 3 The PRINCE2 methodology works with most project management techniques.

The standard technique for identifying the root cause of a problem is to use an Ishikawa diagram, also referred to as a cause-and-effect diagram, tree diagram, or fishbone diagram. There is an international, chapter-based professional association, the IT Service Management Forum (ITSMF), which has a semi-official relationship with ITIL and the ITSM audit standard ISO/IEC 20000.

The IT Service Capability Maturity Model uses the CMM maturity measurement model.