Distributed applications typically use middleware servers to leverage the system services such as transaction, security, and pooling.

典型的分布式应用会通过中间件服务器调用一些系统服务，例如事务、安全以及缓冲池等。

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Platform-as-a-Service: BPM BlueWorks runs on a middleware platform that includes application servers, database servers, collaboration servers, and security servers.

平台即服务(Platform - as - a - Service)： BPM BlueWorks运行在一个包含应用服务器、数据库服务器、协作服务器和安全服务器的中间件平台上。

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NanoHUB.org employs a unique middleware system that precisely balances security, performance, and convenience to support distributed public research on nanotechnology.

or g使用了一种独特的中间件系统，该系统精确地兼顾了安全性、性能和方便性，以支持纳米技术的分布式公共研究。

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In hybrid form, a private cloud can include data stored on premise or off, with a private Platform-as-a-Service middleware layer managing application data and enforcing data security.

FORBES: The Data Protection And Security Case For Private Clouds

This grid was initially a struggle to manage, because the middleware the software that handles supply and demand of resources on the grid effectively, as well as security and the other niceties that a distributed system entails had been cobbled together from various academic projects, and was not mature.

ECONOMIST: Computing