Once the overall migration process — including data, logic, and processes — is completed, the cost of maintaining multiple data sources can be reduced by eliminating the legacy system (s).
So a good virtualization system has an ability to measure the cost of each different type of request in terms of computing power required to process the request.
因此，一个好的虚拟化系统应能够根据处理请求所需的计算能力来度量每个不同请求类型的成本。
3
So, in the design of control system during the process of comprehensive consideration of the control requirements, cost factors, choose the proper control motors.