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平台即服务

平台即服务(英语:platform as a service缩写PaaS)是一种云计算服务,提供运算平台与解决方案服务。在云计算的典型层级中,PaaS层介于软件即服务基础设施即服务之间。

PaaS提供用户将云端基础设施部署与建立至客户端,或者借此获得使用编程语言程序库与服务。用户不需要管理与控制云端基础设施(包含网络、伺服器、操作系统或存储),但需要控制上层的应用程式部署与应用托管的环境。[1]

PaaS将软件研发的平台做为一种服务,以软件即服务(SaaS)模式交付给用户。因此,PaaS也是SaaS模式的一种应用。但是,PaaS的出现可以加快SaaS的发展,尤其是加快SaaS应用的开发速度。

PaaS 提供软件部署平台(runtime),抽象掉了硬件和操作系统细节,可以无缝地扩展(scaling)。开发者只需要关注自己的业务逻辑,不需要关注底层。下面这些都属于 PaaS。

参考文献

  1. ^ The NIST Definition of Cloud Computing (PDF). National Institute of Science and Technology. [2011-12-24]. (原始内容存档 (PDF)于2012-04-03) (英语). 

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平台即服务
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