Eclipse使用OSGi作为其插件的模块化机制。

Eclipse USES OSGi as its modularity mechanism for plugins.

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JAAS提供了对用户进行认证和控制访问资源的模块化机制。

JAAS provides a modular mechanism for authenticating users and controlling access to resources.

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总结了U ML状态机的设计应该满足实现层次上的复用能力，这可以是U ML状态机的模块化机制解决“状态爆炸”问题的有益补充。

State machine (SM) implementation should meet reusability on the level of implementation. This can be a useful complement to the modularity of the UML SM to address the problem of "state explosion".

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