Which framework is widely used to document the processes and functions of IT Service Management?

The framework widely used to document the processes and functions of IT Service Management is ITIL, which stands for Information Technology Infrastructure Library. ITIL provides a comprehensive set of practices and guidelines focused on aligning IT services with the needs of the business. It encompasses various components like service strategy, service design, service transition, service operation, and continual service improvement, which help organizations improve efficiency and effectiveness in service delivery.

By standardizing IT service management practices, organizations can enhance service quality, reduce risks, and achieve better governance. ITIL also promotes a common language and framework that can be adopted across various companies and sectors, leading to improved communication and collaboration among IT teams and stakeholders.

Other frameworks or standards mentioned serve different purposes. COBIT focuses on governance and management of enterprise IT, ISO 27001 is primarily concerned with information security management systems, and NIST provides guidelines for cybersecurity and risk management rather than specifically addressing IT service management. Thus, ITIL stands out as the go-to framework for documenting IT service management processes.