Theoretical Research on Current Decision-Making System in Investment Control of Construction Project

Budget out of control has been a severe problem in construction projects in China, which hampers the increase of project investment benefit. One of the main reasons is the DSICCP (decision-making system in investment control of construction project) is still blank and managerial staff lack of scientific decision-making thoughts and methods. Based on current working procedure and management mode, the paper firstly analyzed actual project investment during construction period in detail and then established DSICCP, taking investment benefit as the decision-making objective. DSICCP divided investment management process into 2 stages, construction prior-period stage and construction execution stage. Each stage was composed of independent subsystems to satisfy specific requirements of different tasks. After discussing the characteristics of every subsystem, systematic decision-making model was built. According to the model, classification principles and behavior criterions for controlling project investment were developed to optimize the investment. A realistic example proved DSICCP could be used for its applicability.