ICNEA 6540—Operation and maintenance services

Where 6540 sits

1. I Information transmission, software and information technology services
2. 65 Software and information technology services
3. 654 Operation and maintenance services
4. 6540 Operation and maintenance services

What 6540 includes

• Includes the following operation and maintenance service activities：
• Operation and maintenance services: basic environment operation and maintenance, network operation and maintenance, LAN maintenance, software operation and maintenance, hardware operation and maintenance, and other operation and maintenance services
• LAN installation and commissioning services, LAN maintenance services, and other network technology support services
• Refers to basic environment operation and maintenance, network operation and maintenance, software operation and maintenance, hardware operation and maintenance, and other operation and maintenance services.

What 6540 excludes

• Information system integration services, included in 6531 (Information system integration services)

6540 in other systems