软件工程是用工程、科学和数学的原则与方法研制、维护计算机软件的有关技术及管理方法，研究领域包括软件工程的目标、原则和软件工程方法学，构成软件工程的3个组成要素是方法、工具和过程。-software engineering is engineering, scientific and mathematical principles and methods of development, maintenance of computer software technology and management methods, research areas include software engineering goals, software engineering principles and methodologies, software engineering constitutes the three elements of the methods, tools and processes.