业务过程与业务用例

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1、1 业务过程与业务用例业务过程与业务用例v一个一个业务过程业务过程是根据组织目标而采用组织资是根据组织目标而采用组织资源来获得预定义结果的一组逻辑相关的活动源来获得预定义结果的一组逻辑相关的活动v用一个用一个业务用例业务用例代表一个业务过程代表一个业务过程vBUC：A sequence of work steps performed in a business system that produces a result of perceived and measurable value to an individual actor of the business. 2 业务用例业务用例 银行银

2、行3 业务用角业务用角定义：定义：1）业务之外与业务交互的人或物。业务之外与业务交互的人或物。2）a role that someone or something in the environment can play in relation to the business.3）Someone or something, outside the system or business that interacts with the system or business (RUP)4 什么是用例？什么是用例？vA use case expresses the behavioral portion

3、of a contract between the stakeholders of a system. It describes the systems behavior and interactions under various conditions as it responds to a request on behalf of one of the stakeholders, the primary actor, showing how the primary actors goal gets delivered or fails. The use case gathers the s

4、cenarios related to the primary actors goal. (Cockburn)vA sequence of actions a system performs that yields an observable result valuable to a particular actor. (RUP)5 用例的组成内容用例的组成内容v目标、利益目标、利益v用角、干系者用角、干系者 v层次层次v范围范围/SuDv触发事件触发事件v基本流基本流v扩展流扩展流v前置条件前置条件v后置条件（最小保后置条件（最小保证、成功保证）证、成功保证）v技术和数据变化技术和数据变化v优先级优先级6 用例的范围用例的范围7 业务用例：柜台取款（业务用例：柜台取款（1）8 业务用例：柜台取款（业务用例：柜台取款（2）9 业务用例：柜台取款业务用例：柜台取款 （3）10 业务用例活动图：柜台取款业务用例活动图：柜台取款