End user convenience is the keynote of the universal serial bus (USB). The Plug and Play (PnP) concept has simplified the process of installing certain types of hardware on existing PCs. However, configuration issues continue to plague end users with

林锐博士作品。SPP简并行过程（Simplified Parallel Process）是基于CMMI以及软件工程和项目管理知识而创作的一种“软件过程改进方法和规范”，它由众多的过程规范和文档模板组成。SPP主要用于指导国内IT企业持续地改进其软件过程能力。-linrui s SPP