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Terms and Concepts
术语和概念
A note is a graphical symbol for rendering constraints or comments attached to an element or a collection of elements. Graphically, a note is rendered as a rectangle with a dog-eared corner, together with a textual or graphical comment.
备注是一个将约束或说明附加到一个元件或一个元件集的图形符号．图形表现上，一个备注被表现为一个在右上角带有狗耳朵的矩形方框，连带有一段文字或是图形加以说明．
A stereotype is an extension of the vocabulary of the UML, allowing you to create new kinds of building blocks similar to existing ones but specific to your problem. Graphically, a stereotype is rendered as a name enclosed by guillemets ( French quotation marks of the form ?? ), placed above the name of another element.
模式化是UML词汇表的扩展，允许你创建与已有的构建块相类似，但专门针对你个人问题的新类型的构建块．图形表现上，一个模式化被表现为在双引号之内的名称(法国的引用形式是《》)，放置在另一个元件的名称之上．
Optionally the stereotyped element may be rendered by using a new icon associated with that stereotype.
任意地模式化元件可以通过使用关联到那个模式化的新图标表现．
A tagged value is a property of a stereotype, allowing you to create new information in an element bearing that stereotype. Graphically, a tagged value is rendered as a string of the form name=value within a note attached to the object.
标签值是模式的一个属性，允许你在一个承担那个模式的元件上建立新信息．图形表现上，一个标签值被表现为形如名称=值的一串字符串，附加在对象的一个备注里．
A constraint is a textual specification of the semantics of a UML element, allowing you to add new rules or to modify existing ones. Graphically, a constraint is rendered as a string enclosed by brackets and placed near the associated element or connected to that element or elements by dependency relationships. As an alternative, you can render a constraint in a note.
约束是一段文本，用以描述UML元件的语义，允许你加新的规则或是修改现有的元件．图形表现上，约束被表现为用一对括弧括起的一串字符串，并被放置在关联元件的附近或是那个元件或元件组的依赖关系附近．作为替代方案，你可以在一个备注里表现一个约束．
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原文地址：http://blog.csdn.net/listen_snow/article/details/44077461
