南通大学学报（自然科学版）

在阐述用例模型及基本构件概念的基础上,给出了突发事件应急疏散仿真需求描述的基本方法,寻找仿真系统的参与者,并根据参与者确定仿真系统的用例,以用例图规定系统的行为,以文档形式的用例规约描述具体用例,建立突发事件应急疏散仿真用例模型.最后,通过"调用疏散模型"的活动图实现了对用例的进一步求精,展现了用例驱动应急疏散仿真系统需求建模的全过程.

After elaborating the basic conception of use case model and its components,a basic method in description was given about emergency evacuation simulation.First,the participants of the simulation system were identified to ascertain the use case of the system.Then,a simulated use case model of emergency evacuation was established by applying use case diagrams to control the system behavior and using use case documents to stipulate specific use cases.Finally,a further refinement was achieved to use case model by the activity diagram with "Call Evacuation Model" example,which demonstrated the whole process of simulation requirement modeling system driven by use case.