What is ITIL? What is IT Service Management (ITSM)?

IT Infrastructure Library (ITIL) is a widespread set of best practices and the most widely accepted approach to assist organizations in developing a framework for IT Service Management (ITSM). IT Service Management is the top-down, business-driven approach to the management of IT services that focuses on addressing the strategic business value generated by IT organizations. The philosophy behind the adoption of ITIL is the recognition that organizations are becoming increasingly dependent on IT to satisfy and meet their corporate goals, which leads to an increased demand for high quality IT services.