2. 储蓄系统数据流图 3. 机票预订系统数据流图 4. 患者监护系统数据流图

2.1 可行性研究的任务 2.2 可行性研究过程 2.3 系统流程图 2.4 数据流图 2.5 数据字典 2.6 成本/效益分析 2.7 小结

一、基本概念 二、单元测试 三、集成测试 四、验收测试 五、设计测试方案

一、结构程序设计 二、详细设计的工具 三、 Jackson程序设计方法 四、Warnier程序设计方法 五、程序复杂程度的定量度量

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

The recurring aspects of designs are called design patterns. A pattern is the outline of a reusable solution to a general problem encountered in a particular context Many of them have been systematically documented for all software developersto use

Software engineers should avoid re-developing software already developed Types of reuse: Reuse of expertise Reuse of standard designs and algorithms

Procedural paradigm: Software is organized around the notion of procedures Procedural abstraction —Works as long as the data is simple Adding data abstractions —Groups together the pieces of data that describe some entity

Software is intangible Hard to understand development effort Software is easy to reproduce Cost is in its development —in other engineering products, manufacturing is the costly stage

7.1 User Centred Design Software development should focus on the needs of users Understand your users Design software based on an understanding of the users’tasks Ensure users are involved in decision making processes