Knowledge Of Construction Project Bidding And Its Decision Support System

Tender evaluation is the primary stage, and is the key factor whether a bid and tender is success or not. However, the domestic tender evaluation at present is often processed by the committee, which organized by the owner or the agency company. During the course, sometimes because of the more subjectivity, the more qualitative factor and the less quantitative analysis, the fairness of tender evaluation is suspected.For the fairness, opening, justness of tender evaluation, the theories of knowledge engineering and DSS are applying. Aiming at improving the fairness, scientificalness and intelligence of tender evaluation problems of engineering project, knowledge representation of tender evaluation in computer is realized. At the same time, a tender evaluation IDSS system for engineering project is designed and realized.The research of this paper is as follows:1 Based on most methods of tender evaluation at home and aboard, "rational low price law" and "hundred-mark system" are adopted here, which realized to connect with international.2 The theory of knowledge representation is applied, tree-like presentation of problem is adopted, and the bid and tender problem and tender evaluation problem on building projects are represented in computer.3 At the background of "the tender department of Dalian capital construction commission", a tender evaluation IDSS system on engineering project is designed and realized, and aid decision making for commissions is supplied. At the same time, the character of "three-fair" can be embodied very well."Tree-like representation" on tender evaluation of engineering project is put forward here, which is the first application of "tree-like representation" in bid and tender, has the actual value not only in theory but also in application. At the same time, this system has been widely applied in practice, and got favorable comment of user.