Much-needed aid to use modern tools to improve enterprise management level, through the advanced and practical implementation of management information systems to improve office efficiency and speed up information transmission speed, to facilitate information exchange, resource sharing; to take the responsibility of decomposition, target control and dynamic management, accounting examination and a series of measures to strive for greater efficiency; continuously enhance corporate management level, strengthening enterprise management and project management, improve enterprise's core competitiveness.

The basic principle of project cost estimation lies is the decomposition and combination of a project, while the project quotation software is an effective tool for calculating project cost.Introducing the concept of WBS (Work Breakdown Structure) into the project quotation software will greatly improve the accuracy of project cost estimation and the efficiency of cost control.

In the 20th century, Business Process Reengineering(BPR)causes the attention of many enterprise managers. Through BPR, many enterprises increased efficiency and won business competitiveness. In today's rapid development of information technology, through the reengineering and information technology, real estate enterprises can add value and competitiveness.