be an attribute of

For example, if an event contains an xsi: type attribute identifying its payload, and different kinds of events have different types, testing this attribute may be all that's needed.

如果所订阅的事件包含了确定其有效负载的xsi：type属性，并且不同的事件实例具有不同的类型，则所需做的工作就是测试此属性。

When working with JavaScript objects, the reason for using the set() method to create or set the value of an attribute might not be obvious.

当使用JavaScript对象时，使用set（）方法创建或者设置属性值的原因并不是显而易见的。

An attribute-based Access Control mechanism tailored for the NGN open service architecture is proposed and formalized with Description Logic. With the logic formalization, the access control decision and consistency of polices can be reasoned.

使用描述逻辑对NGN业务体系中基于属性的访问控制机制进行了形式化分析，通过描述逻辑的推理算法解决访问控制决策、策略一致性等问题。