ISO/IEC 20000 is the world's first international standard for the field of information technology service management (IT Service Management). The standard defines a comprehensive set of closely related service management processes, both for service providers and external service providers, but also for internal IT departments.

ISO 20000 is an organization-oriented IT service management standard designed to provide a model for establishing, implementing, operating, monitoring, reviewing, maintaining and improving an IT service management system (ITSM). With the development of IT technology, more and more organizations build their own value chain based on IT technology, and the establishment of an IT service management system (ITSM) has become a problem for various organizations, especially financial institutions, telecommunications, high-tech industries, etc. to manage operational risks indispensable important mechanism. How to control the overall risk of this IT service and improve the overall service level of IT is a problem that needs to be highly valued, and the ISO20000 series of standards is a good guide to solve this problem. ISO 20000 allows IT managers to have a frame of reference to manage IT services, and a sound IT management level can also be demonstrated through certification.

The CNCA "Announcement on Carrying out ISO 20000 Information Technology Service Management System Certification" stipulates the following business categories (first batch) for carrying out ISO 20000 certification:

Information system consulting and planning

Information system software design and development

Information Technology Consulting

Information System Testing

software product testing

Information system engineering supervision

Software Engineering Supervision

Infrastructure operation and maintenance

Hardware operation and maintenance

software operation maintenance