Abstract: An integrated electronic commerce (e-commerce) based construction industry bidding and project management system and methods, including document distribution, supply chain automation and on-line auctioning. In a pre-construction setting, the e-commerce based bidding and project management system and method provides for a user the means for participating and competing in the bidding and construction project management tasks using on-line computerized telecommunications technologies. The on-line system and methodologies help the participants to achieve cost efficiencies and performance enhancements that traditional prior art manual bidding and construction management systems and methods have not achieved.