Project Investment Estimated Method

The reform in architecture should revolve around shortening the project time limit, reducing the cost, increasing the quality of the project and theeconomic returns of the investment. The assessment of the investment plays an instructive role in the course of the construction. Its accuracy directly affect suchmatters as investment decision, infrastructure scale, project planning ?the economic returns of the investment and also have a direct influence on whether or not the construction can go smoothly. As a result, it will bring immenseeconomic and social returns to make an subjective, correct and quick evaluationof prospective project in a scientific and effective way.The method of investment evaluation was established relatively late inproject construction field. Calculating system is not sound, the research in many fields is still at early stage. Whereas it is still in developing and deepening stage abroad. And also because many analytical methods are in discussion,each investment evaluation method has its advantage and disadvantage leaving something to be further improved.With reference to the advanced experience at home and abroad, the papertry to use the basic theory of fuzzy mathematics and computer knowledge to find a way to establish subordinate function and some important indexes ininvestment evaluation analysis and set up model for analysis, makingevaluation, checking the result and revising the model accordingly.The target for investment evaluation of project construction should be set only advanced but also practical, if the target is set too low, it will lackinspiration for the constructors. The target seems meaningless. If otherwise, there will be a gap in investment when the project is set up, the control of the investment in the project is of no value. Thus, it is extremely necessary and essential to make a scientific ' effective and prompt investment evaluation.