This paper particularly narrates three key technologies for developing flexible embedded software, which are arrangement technology, frameworks technology and reusable component technology.
文中详细叙述了开发柔性嵌入式软件所必需的三项关键技术，即层次化技术、框架技术和可复用构件技术。
Software component technology is the core technology that support software reuse, the design, development and use of reusable component can improve software quality, reduce development costs.
软件构件技术是支持软件复用的核心技术，可复用构件的设计、开发和使用可以提高软件的质量、降低开发的成本。
Using the technology of reuse software is an effective way to solve software crisis. Software engineering based on reusable component is a major approach of reusing software.
采用软件重用技术是解决软件危机的重要途径，基于组件技术的软件工程是重要的软件重用技术。
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