But even more importantly the Cloud business model is a utility model based on pre-defined utility services that can be consumed (and paid for) on-demand.

但是更重要的是云业务模型是基于可按需消费(支付)的预定义效用服务的效用模型。

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InfoQ: in your book you are discussing different types of services, including business services, it services, information services, or utility services.

InfoQ：在书中你们谈到了不同的服务类型，如业务服务、IT服务、信息服务、工具服务等。

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Services encapsulate function, whether it is business function or common utility function.

服务对功能进行封装，此功能可以是业务功能或实用功能。

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