Service Tiering

Based on the importance of service systems and the impact scope and degree of the service system interruption on the company's services, service systems can be classified into the following types:

• Core system
  1. Core systems that run a company's core business processes, such as purchase systems. If such systems are stopped, the company's operations will be severely affected or significant financial losses will be incurred.
  2. Important infrastructure and office systems that support the company's critical applications. If such systems are interrupted, a large number of employees' work will be affected.
• Important system
  1. Important systems that run a company's crucial business processes. If such systems are stopped, the company's operations will be greatly affected or major financial losses will be incurred.
  2. Infrastructure and office systems that support the company's important applications. If such systems are interrupted, employees' work will be severely affected.
• General system
  1. General systems that run a company's business processes, such as training systems. If such systems are stopped, the company's operations will be affected or financial losses will be incurred.
  2. Infrastructure and office systems that support the company's general systems. If such systems are interrupted, employees' work will be affected.

Normally, data levels can be evaluated based on the impact of service systems. Core data corresponds to core systems, important data corresponds to important systems, and general data corresponds to general systems. If the data level and service system level do not match, determine the service system level based on the data level. For example, if a service system is evaluated as an important system, but its data is considered as the core data, then the service system should be considered as a core system.