What set of best practices relates to IT service management?

The best set of practices that relates specifically to IT service management is ITIL, which stands for Information Technology Infrastructure Library. ITIL provides a structured approach to designing, delivering, managing, and improving IT services. It includes best practices that help organizations align their IT services with the needs of the business, promoting efficiency and effectiveness in service delivery.

ITIL emphasizes key areas such as service strategy, service design, service transition, service operation, and continual service improvement. By following ITIL guidelines, organizations can create a cohesive framework for managing IT services, leading to enhanced service quality and customer satisfaction.

The other frameworks mentioned serve different purposes. COBIT is primarily focused on governance and management of enterprise IT. ISO 27001 is concerned with establishing, implementing, maintaining, and continually improving an information security management system (ISMS). CMMI, or Capability Maturity Model Integration, focuses on process improvement across various domains but is not specifically tailored to IT service management.