The design complexity and system function of electronic system have been increasing largely , the competition from the global also shorten the design period , therefore , the demand for the tools of electronic design automatic is tremendous and the requirement for efficiency of eda tools is more and more precise 電子系統的設計復雜性和系統功能一直在呈幾何級數增長,全球的競爭又加劇了產品開發周期的縮短。因此,對電子設計自動化工具的需求越來越迫切,要求也日益提高,這一切促進了eda的發展,加速了設計方法和設計工具的更新換代。