系统用例VS.业务用例

问题描述

我在分析和设计上是一个全新的人.

请有人告诉我:

系统用例和业务用例有什么区别?

据我所知，UML中只有一个图称为用例图.现在，他们呢?他们有单独的图表吗?

谢谢

解决方案

业务用例

业务用例是客户或其他有兴趣的人可以利用该业务获得想要的结果，无论是购买商品，获得新的驾驶执照，支付发票等.重要的一点是，一次执行业务用例应该涵盖了做客户(或其他参与者)所必需的所有活动想要的，以及业务在流程开始之前需要做的任何活动从它的角度来看是完整的.

系统用例

相反，系统用例是计算机系统用户可以使用的一种方式利用系统来获得他们想要的结果.这通常是我们可以很容易地想象这是在单个PC或其他设备(例如ATM或移动/手机)上的单个坐姿中完成的，通常具有单个UI或少数几个密切相关的屏幕(例如向导)，并且可能在一对之间最多几分钟半小时.

关键区别

面对一个现实项目中的特定建模任务时，这些差异有助于我们决定:我在这里建模的人是谁?"

I am completely new in analysis and design.....

please some one tell me :

what is the difference between System use case and Business use case ?

As far as I know, there is only one diagram in UML called use case diagram..Now, what about them ? Do they have separate diagram?

Thank you

解决方案

Business Use-Case

A Business Use-Case is a way in which a customer orsome other interested party can make use of the business to get the result they want whether it’s to buy an item, to get a new driving licence, to pay an invoice, or whatever. An important point is that a single execution of a Business Use-Case shouldencompass all the activities necessary to do what the customer (or other actor)wants, and also any activities that the business needs to do before the process iscomplete from its point of view.

System Use-Case

In contrast, a System Use-Case is a way in which a user of a computer system canmake use of the system to get the result they want. This will typically be somethingwe can readily imagine as being done in a single sitting on a single PC or other device such as an ATM or a mobile/cell phone, usually with a single UI, or a small number of closely-related screens such as a wizard, and taking maybe between a coupleof minutes and a half-hour at most.

The Key Difference

When faced with a particular modelling task I a real-life project, these differences helps us to decide: "Which one am I modelling here?"

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