ISO/IEC 20000-1:2018 is an international standard for IT service management (ITSM). It outlines the requirements for establishing, implementing, maintaining, and improving an SMS (Service Management System) within the context of the organization's overall business processes. The standard focuses on delivering effective IT services, meeting customer requirements, and ensuring continual improvement. It is designed to help organizations ensure consistent, high-quality service delivery, improve customer satisfaction, and manage risk while adhering to best practices in IT service management.