软件工程 (Software Engineering，简称为SE)是一门研究用工程化方法构建和维护有效的、实用的和高质量的软件的学科。它涉及到程序设计语言，数据库，软件开发工具，系统平台，标准，设计模式等方面。在现代社会中，软件应用于多个方面。典型的软件比如有电子邮件，嵌入式系统，人机界面，办公套件，操作系统，编译器，数据库，游戏等。同时，各个行业几乎都有计算机软件的应用，比如工业，农业，银行，航空，政府部门等。这些应用促进了经济和社会的发展，使得人们的工作更加高效，同时提高了生活质量。-The software engineering(Software Engineering, the brief name is for the SE) is a research to turn method to set up and support with the engineering effective of, practical of with the academics of the software of high quality. It involves the program design language, database, the software develops tool, system platform, standard, design aspects like mode,etc. In the modern society, the software is applied to several aspects. The software of typical model for example has an E-mail, built-in system, man-machine interface, transact a set of piece, operate system, edit and translate a machine, database, game etc.. At the same time, each profession almost has the application of calculator software, for example industrial, agriculture, bank, aviation, government section etc.. These applications promoted economic and social development, make people s work raise living quality at the same time more efficiently.