西安石油大学：《软件工程 Software Engineering》课程教学资源（PPT课件）第十二章 人机界面设计——用户界面设计

§1. OOD准则：优秀软件设计的一个重要特点是容易维护 §2. 启发式规则 §3. 软件重用 (Software Reuse) §4. 系统分解 §5. 设计类中的服务 §6. 设计关联 §7. 优化

Project management encompasses all the activities needed to plan and execute a project: Deciding what needs to be done Estimating costs Ensuring there are suitable people to undertake the project

1.交互图(interaction diagram) 交互图 顺序图

西安石油大学：《软件工程 Software Engineering》课程教学资源（PPT课件）第六章 编码、实现

一、OOA的基本过程 二、需求陈述 三、建立对象模型 四、建立动态模型 五、建立功能模型 六、定义服务

西安石油大学：《软件工程 Software Engineering》课程教学资源（PPT课件）第二章 可行性研究

Reuse (Assume have source code, not a commercial product) Ariane 5. Therac-25. British AtC Expectation Significantly lower development costs and time. Amortize costs among all users or uses Assumptions

Outline: Software Design Goals History of software design ideas Design principles Design methods Life belt or leg iron?(Budgen)

Abstract Model Specifications Build an abstract model of required software behavior using mathematically defined(perhaps using axioms )types(e. g sets, relations) Define operations by showing effects of that operation on the model Specification includes Model