The target of the different deployment approaches is to provide a controlled mechanism to call both login and logout methods.

不同部署方法的目标都是提供一种可控的机制来调用登录和注销方法。

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In some cases, a worm may perform an additional function outside of simple replication: it may serve as a deployment mechanism for an enclosed payload.

在某些情况下，除简单的复制功能外，蠕虫还可执行其他功能：作为一个封装的负载的部署机制。

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In part, this is achieved by leveraging the SCA programming model, which enables treating different types of services with one description and deployment mechanism.

在某种程度上来说，这个目标是通过利用SCA编程模型实现的，该模型允许使用一个描述和部署机制处理不同类型的服务。

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