Construction Project Bidding Management System Design And Implementation

Bidding transaction originated in the UK two hundred years ago, occupy the important position gradually in market economy countries. Bidding is bidding and bidding, its meaning is:the tender means that a tenderer through the bidding announcement or the bid invitation letter and other forms, invite withthe statutory conditions and participate in the bidding competition with the construction of the ability of the bidder. Bidding is a fully consistent with therequirements of the market economy, the competition of the purchase, thebidder in the same condition according to the purchasing requirementsannounced in advance and conditions for equal competition, so as to determine the project contractor; bid refers to the bidder after qualification examination, the bidding documents according to the requirements of the bidding preparation, production the bidding process of book, submit proposal book work within the prescribed time. The tender bidders on the project, by virtue of their business experience and reputation, strength and advantages,as well as the level and skills, eventually won the project task. Tendering and bidding is a pair of mutually corresponding category, corresponding to each other. Bidding transaction is a transaction in the market.With the popularization of the bidding transaction in the construction industryto improve, bidding business complexity increasing, the construction biddingbusiness gradually formed the standard. Bidding business management standard is composed of the following aspects:1, the bidding plan management.2, the bidding process management.3, the implementation of the contract management.4, the bidding result analysis.5, the statisticalalysis and decision support.6, cost management. Manual bidding management in bidding business process increases the flow of increasingly refined and process document management complexity, the existing problemsby itself, such as the bidding process of chaos, the lack of details, contract documents and process documents difficulties, lack of statistical analysis of the tender results, at the same time the bidding process is fair and just a question.Based on current information management system of bidding business has become a necessary choice to solve the above problems. The system canregulate the bidding, bid on professional to strengthen bidding management,for enterprises to improve efficiency, the intervention of human factors to a minimum, fair, justice and open principle in the bidding process to ensure.According to the construction project bidding and business process, the establishment of information management system with the construction projectbidding business. The system uses the design idea and analysis method based on object oriented requirement analysis and modeling tool, using the unified modeling language. In the design of the information system, the systemanalysis of user distribution widely, according to the characteristics,advantages and disadvantages of the architecture design, using hierarchicalB/S architecture design based on J2EE. In this paper, in the realization of technology the design of multi-layer J2EE architecture based onSpring+Hibernate framework components, so as to improve system maintainability, reduce the amount of code development. And the lightweightcomponent design, the view layer and business logic layer are effectively separated.Based on the above architecture design, through the functional requirements and non-functional requirements in-depth analysis of the system, the use of UML modeling method for dynamic modeling and static modeling analysis, established business model of the system, including business process model and functional model database design and build a whole business. Based on this realization of Web-based construction project bidding business management system, a software system designed module structure, systems network architecture, a detailed description of the function of each module.The main issues addressed in this article:1、the construction project tendering and bidding business such as nested sub process audit, approval, decision process and complex. In this paper, the system architecture design information management, joined the workflowengine based on JBPM. In order to achieve the design of the system implementation process to complete the whole business process modeling, control and status tracking audit.2、put forward a set of evaluation committee involved in bid evaluation evaluation of credit rating calibration method. Expert information management system based on the evaluation group, in the bidding process of randomly generated review evaluation committee, combined with the tender bidding andperformance assessment information, jointly determines the optimal bidding enterprise.