I think its important to understand what the key attributes of cloud services are， and how one becomes defined as a cloud service provider. Whats important to know when you think about cloud services is that it has to be service-based； it has to be a service [whether its the provision of software， platform or infrastructure]. It has to be able to be metered， it has to be shared， its got to be scalable and somewhat elastic， and it has to be done through Internet-based technology. Thats how people think about cloud services. Without those attributes， youre really not a cloud service provider.

美國云計算服務供應商Equinix CFO Keith Taylor在談到云服務時指出，對于云服務的認識存在很多誤解。“我認為最重要的是理解云服務的關鍵屬性，以及如何定義云服務提供商?！?Taylor強調，云服務首先是以服務為基礎；其自身就是服務，無論是軟件、平臺或基礎設施。云服務是可測量的、能夠共享的、具有可伸縮性，而且一定是依靠互聯(lián)網(wǎng)技術得以運行的。“離開了這些屬性，就不是一個真正的云服務提供者?！?/p>

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