在面向对象的设计中，存在属性及操作可见性的记号。

In object-oriented design, there is a notation of visibility for attributes and operations.

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面向对象设计的缺点在于，这样的业务对象会因为混合的属性和与对象最初意图不一致的操作而变得混乱。

The downside of object-oriented design is that such business objects can become muddied with mixed properties and operations that are incongruent with the object's original intent.

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组件可以消费这个属性并存储它，供以后的操作使用；还可以执行一个面向数据的操作，比如更新一个编辑框的值。

The component may consume this property and just store it, pending a later operation, or it may do a single data-oriented operation, such as updating the value of an edit field.

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