对项目的评估，学者和实际工作者都已进行了深入和广泛的研究，发明了各种评估预测的方法和模型，不同的方法和模型都有各自的适用范围。高技术产品的开发或风险投资的一个基本特点是投资支出是序列的，后一轮的投资依赖于前一轮的投资的效果，或继续或中止项目的投资，如高新 The assessment of the project, scholars and practitioners have conducted in-depth and extensive research, invented a variety of assessment methods and models of prediction, different methods and models have their own scope of application. A basic feature of high-tech product development or venture capital investment is the sequence of investment expenditures, the latter round of investment depends on the effectiveness of the previous round of investment, or continue or suspend the project investment, such as high-tech