说明：  第一部分对软件工程的概念做介绍后，第二部分介绍了15个软件工程的设计案例。这些案例都是作者与同行曾做过的软件工程项目，包括计算统计、软件平台、信息系统以及系统接口等方面的内容。每个案例都说明了一个应用方面。
(The first part of the software engineering concept is introduced, the second section describes the design of the 15 cases of software engineering. These cases are the author and colleagues have done software engineering projects, including the calculation of statistics, software platforms, information systems, and other aspects of the system interface. Each case is illustrated an application.)