特别是，90年代以后，提出了基于构件的软件开发。此时以软件过程为中心，强调软件开发采用构件化技术和体系结构技术，要求开发出的软件具备很强的自适应性、互操作性、可扩展性和可重用性。-In particular, since the 1990s, is proposed based on component software development. At this point in the process-centric software, emphasizing the use of component-based software development technology and architecture technology, requires the development of software with strong adaptability, interoperability, scalability and reusability.