图1用一个用例图阐明了这些用例。
Figure 1 illustrates these use cases using a use case diagram.
用例编辑器以创建用例规格和用例图；
Use Case editor to create use-case specifications and use-case diagrams;
用例和用例图可以用于测试系统的以下方面。
Use cases and use case diagrams can be used for testing the following aspects of the system.
发生的方式之一是将数据流图和用例图混淆在一起。
One way this occurs is by confusing data flow diagrams with use case diagrams.
对包含或者扩展一个用例图，使用其他的画图工具栏操作
Use the additional drawing toolbar operations for Include and Extend on a use case diagram
用例图，它阐述了如何将UM l图添加到这个报表中？
Use case diagrams, which demonstrate how to add UML diagrams to the report.
很快地，你就可以像睡莲覆盖池塘一样，覆盖你的用例图。
Soon, you will cover your use case diagram with use cases like water lilies cover a pond.
用例模型还包括描述用户与系统如何交互的用例图和活动图。
The use case model also includes use case diagrams and activity diagrams that describe how users interact with the system.
用例图：可视化的描述系统用户，和系统为用户提供的服务。
Use case diagram: A visual representation of system users (actors) and the services they request from the system.
用例图经常被分组来显示涉众们的需求集合（请看图1中的例子）。
Use case diagrams (see Figure 1 for an example) are often grouped to show a collective set of stakeholder needs.
特别是用例图，还有其它的特性，比如属性，可追踪性链接，修订历史。
They have additional properties, such as attributes, traceability links, revision history, and particularly for use cases-diagrams.
环境图是用例图的一部分，向参与者和其它用例显示了特殊用例之间的关联。
A context diagram is a part of a use case diagram showing the relationships of this particular use case to actors and other use cases.
当我们从用例图转入到序列图和类图时，马上就会注意到已知的参与者的影响。
As we move from use case diagrams into sequence and class diagrams, we will immediately notice the impact of known actors.
UML中能算是高层次抽象的部分只有用例图，而这是在完全失却精确性的情况下。
The only part of UML that is on a high level of abstraction is the Use Case diagram, and that's only at the total loss of precision.
这些测试通常封装了一组相关的步骤，以达到业务目标，而且他们重新绘制了用例图。
These tests generally encapsulate a set of related steps that achieve a business goal, and they resemble a use-case diagram.
明年，当“终身教授”和“助教”的职位合并为“教师”时，您无须重新修改用例图。
Next year, when the positions of "Tenured Professor" and "Associate Professor" get combined into "Instructor," you will not have to rework all of your use-case diagrams.
最后，状态机图，交互图以及用例图都是来自于uml 2.0的重用，没有进行修改。
Lastly, state machines, interactions, and use cases are reused from UML 2.0 without modification.
然后基于用例图来设计测试路径，通过这些，所有相关关系和可能的选择至少要一次通过。
The test paths are then designed based on the use case diagram, through which all relevant relationships and possible choices are passed at least once.
要组织这些用例，或者至少连通要管理的所有范围，您可能决定生成一个或更多的用例图。
To organize these use cases, or at least to communicate the overall scope to management, you might decide to create one or more use-case diagrams.
把你已经创建好的项目和类图作为起始点，创建一个用例图以便使你了解应用程序的行为。
Using your project and the class diagram you have already created as a starting point, create a use case diagram to make sure you understand the behaviour of your application.
为了能够依靠用例来测试，除了用例描述和用例图之外，还需要有关特定方面的额外信息。
In order to be able to test by means of use cases, besides the use case description and a use case diagram, additional information regarding specific aspects is required.
用例图是用来建模系统主要功能的结构，可以识别出最初的系统与它的开发环境之间的交互。
Use case diagrams are constructs that model the main functions of a system, and identify initial interactions between the system and its environment.
用例模式允许测试人员从视觉上识别他们地测试用例，尤其是当这个过程包括一个用例图时。
The use case model allows testers to visually identify their test cases, especially when the process includes a use case diagram.
我已经向你展示的那个建好的简单UM L用例图，会成为在以后的文章中讨论内容的基础。
The simple UML use case diagram creation that I showed you will serve as the foundation for what'll I'll discuss in later articles.
在这个情况下，您应该尽力的识别已经被代码实现的特定特性，然后将这些特性映射到用例图。
In this case, you try to identify the specific features implemented in the code and then map them to the use cases.
早期的频繁的客户接触与简单的需求电子数据表代替了传统的功能规格说明书和复杂的用例图。
Early and frequent customer contact combined with a simple requirements spreadsheet replace traditional functional specifications and sophisticated use case diagrams.
所有内容都来自于工作说明，我们得到特性列表和用例图，分解问题，然后选择一个用例开始迭代。
All from a statement of work, we can derive the feature list and use case diagrams, break up the problem, and then pick a use case to start to iterate.
您可能还想链接到一些工件，例如：多格式文件、用例图、业务模型以及脚本，来继续加工您的需求。
You might also want to continue elaborating your requirements by linking to artifacts, such as: rich text documents, use-case diagrams, business models, and storyboards.
用例图通过向即将使用系统的人员提供一个系统背景的行为性视图，来取得一个特定有价值的结果(用例)。
Use case diagram Provides a behavioral view of system context by displaying actors external to the system who go to the system to achieve a specific, valued result (use case).
用例图通过向即将使用系统的人员提供一个系统背景的行为性视图，来取得一个特定有价值的结果(用例)。
Use case diagram Provides a behavioral view of system context by displaying actors external to the system who go to the system to achieve a specific, valued result (use case).
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