After analysis,the paper points out that the traditional satellite cost estimation models does not include the corresponding uncertainties,and unable to understand these influences on cost of factor,it cannot predict the accident.

A new method of cost forecast is outlined.

A new model of cost forecast is established by using Artificial Neural Net theory,compared with other forecast methods,the model is capable of self-learning and so on.

It mainly studied the quoted price DSS of BP neural networks about transported lifts,aimed at the limitation of old ways in cost forecasting,it introduced the conception of measure swatch in which the cost forecasting bases on BP neural networks,and it used range estimating methods,so objectivities and reliabilities of transported lifts' quoted price DSS would be heightened.

Construction cost forecasting is very important for the determination of project quotation.

Mineral processing product cost forecasting model built by using Adaptive Neuro-Fuzzy Inference System(ANFIS),and T-S fuzzy model identified by subtractive clustering,least squares and gradient descent algorithm.

Neural network cost prediction model based on real-coded genetic algorithm and its application;

Then it is used in cost prediction under other conditions.

Combined with construction work of Zhangfeng reservoir,from three aspects: cost prediction,cost control and effective measures to reduce cost project cost management is elaborated in detail;at the same time practical measures are discussed from organization,technology,economy,contract,management and other aspects in order to do cost management work well.

Considering some uncertain influencing factors in the missile cost estimation,this paper provides a more effective BP neural network to set up the estimation model of the missile cost.

The internal cost management of construction enterprise is to make correct cost estimation,define the cost plan,refine the cost targets,strengthen the cost control and guarantee the implementation of the cost targets and do well the cost calculation,cost analysis and cost assessment for increasing the management lever.

The method describes the status and structure of the cost clearly,and provides strong decision support for cost estimation.