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# 实验二 | ||
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## 一. 实验目标 | ||
1. 学习用例建模 | ||
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## 二. 实验内容 | ||
1. 确定个人建模选题,将选题填写在 Issues 中: | ||
https://github.com/hzuapps/uml-modeling-2020/issues | ||
2. 画出用例图(Use Case Diagram) | ||
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## 三. 实验步骤 | ||
1. 在 https://github.com/hzuapps/uml-modeling-2020/issues 上提交个人选题 | ||
2. 使用 StarUML 画 Use Case Diagram | ||
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## 四.实验结果 | ||
1. 选题:学生宿舍水电费管理系统:帮助学生正确,高效缴纳水电费。 | ||
①查询学生宿舍水电使用情况:系统提供查询功能,以方便学生对宿舍水电使用情况有所了解;每吨水和每度电的单价变化情况;当月是否有超过用水定额和用电定额。 | ||
②充值,缴纳水电费用:系统提供充值功能,可以通过微信,支付宝,银行卡充值水电费到账户;系统通过水电表数据,使用计算机自动计算每一栋宿舍应交水电费,学生缴纳费用。 | ||
2. ![实验2用例图](./lab2.jpg) | ||
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