First, the nature is different.
1, ITSS: ITSS is a standard library of information technology services and methodology for providing IT services.
2.ITIL:ITIL is an information technology infrastructure library.
3 3.O 20000:ISO 20000 is the standard of information technology service management system.
Second, establish different organizations.
1, ITSS:ITSS was developed by ITSS working group under the leadership and support of the Ministry of Industry and Information Technology and the National Standardization Committee.
2.ITIL:ITIL was created by CCTA.
3. Lamb O 20000: ISO 20000 is an international standard formulated by the International Organization for Standardization.
Third, the purpose is different.
1, ITSS:ITSS aims to find the problems existing in the process of IT service and make timely improvements to improve the quality of IT service.
2.ITIL:ITIL aims to meet the development needs of applying information technology to the commercial field.
3. Lamb O20000: The purpose of ISO 20000 is to establish, implement, operate, monitor, review, maintain and improve the IT service management system.