Imitative creation is one way for Chinese enterprises to achieve innovation and development. Meeting market demands is the first step of product creation. If the market requirements are translated to the operable specification which directs product design, it needs the integration of semantic expression between them, the structurized expression method, the structurized map relation and the comprehensive consideration about many fields in the product life cycle.First, the methods are proposed to acquire, analyze and define product requirement rapidly, and the requirement model is built. Then, a software infrastructure is established for requirement acquisition and definition system RADAR supporting product creation. Finally, the key technology is given to implement this system.%模拟创新是我国企业寻求发展的出路之一，其中满足市场需求是产品创新的根本点.如果将市场需求转化为指导产品设计的可操作的设计说明书，需要它们之间语义表达的统一、结构化的表达方法、结构化的映射关系以及产品生命周期内多领域的全局考虑.本文在此前提下对市场需求如何进行敏捷地获取、分析和定义做了较为深入的讨论，建立了产品需求模型，并提出了支持产品创新的需求获取与处理软件系统RADAR的框架结构.最后，给出了实现该系统的关键技术.
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