The main procedure and steps are following as : according the random characteristic of the time spent by each work procedure , computer simulation is applied to produce the most possible scheduling network . and by corresponding optimization and adjustment on the network , the cost and scheduling construction network can be obtained ; during the practical construction according to the network , the warp between the actual cost and expected scheduling is tracked dynamically . then the computer simulation system is used to predict the future cost and progress operation , and take corresponding precautionary measures to control beforehand 其主要思想與步驟為:首先運用計算機仿真技術來仿真工序作業時間的隨機特性,產生概率最大的施工網絡計劃,并對其進行優化和調整,以獲得滿足工期、質量要求的成本及網絡計劃;在施工過程中動態跟蹤施工實際成本與進度與目標計劃所發生的偏差以及質量問題,然后根據已出現的偏差,利用計算機仿真技術對項目未實施部分進行進度、成本的預測和分析,根據現有信息對網絡計劃未完成部分進行調整和優化,以盡可能把各項費用控制在預定計劃成本之內或使工程的綜合指標最優。