The service provider is a software element that provides one or more services.
服务提供者是一个提供一个或者多个服务的软件元素。
Each software service can act as a service provider or requester.
每个软件服务均可充当一个服务提供者或请求者。
The cloud model potentially lowers users' costs because they don't need to buy software and the hardware to run it - the provider of the service has done that already.
云模型可以降低用户成本,因为他们无需购买软件和硬件也可以运行—服务提供者已经为用户提供了必要的组件。
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