需求进化定律是发明问题解决理论（TRIZ）体系中的最新研究成果，在分析这些定律的基础上，提出未来需求预测原理，定义了困难功能元的概念及效应综合方法，形成了从需求预测到困难功能元效应综合实现的一类原始创新过程模型。

Law of needs evolution is the latest success about the research of theory of inventive problem solving (TRIZ). The future needs forecasting principle is put forward by analyzing the above laws. The difficult function unit and method of effect synthesizing are defined and then a type of new process model of original innovation is built and it begins from the needs forecasting to the effect synthesizing of difficult function units.