| 摘要 |
PROBLEM TO BE SOLVED: To prevent the overall waste based on the redundant estimation of respective construction contract workers by estimation orders generated from one building contractor to the plural construction contract workers and to exterminate useless estimations by paying a retrieval charge to an estimation registered person. SOLUTION: For this mutual estimation system of a construction industry, a center data base and the computers of the respective construction contract workers are connected by the Internet. When the estimation is requested for one construction from the building contractor, the respective construction contract workers perform retrieval in the case that already registered integrations or estimations are present in the data base and the first estimation approval member can perform registration when there is no registration. |
