( ) is a model that can obtain the required resources (for example, computing, storage, network, applications and services) from the configurable resource sharing pool anytime, anywhere…

( ) is a model that can obtain the required resources (for example, computing, storage, network, applications and services) from the configurable resource sharing pool anytime, anywhere, conveniently and on demand, and resources can be quickly supplied And release, so that the workload of managing resources and the interaction of the cloud service provider is reduced to a minimum.