What does the information technology service industry include

The business of information technology service enterprises mainly includes the following eight categories: information technology consulting, information technology operation and maintenance, design and development services, testing services, data processing services, integrated implementation services, training services and information system value-added services. Among them, technical operation and maintenance is a comprehensive service provided by suppliers to IT operating environment (such as basic environment, software and hardware environment, network environment, etc.). ) and IT business systems adopt relevant methods, means, technologies, systems, processes and documents according to the service level requirements put forward by the demanders. Note: Support services during the warranty period of hardware and software products are not included. Testing services are testing and testing services provided by testing service providers (including third-party testing institutions) to test whether software, hardware, network and information security meet the specified requirements. Include software testing service, hardware testing service, network testing service, information security testing service and other testing services.