Abstract
In Japan, we have had such extremely high risk of natural disasters that construction firms have been playing important roles, not only in infrastructure management, but also in disaster prevention and economic development for our society. However, due to the recent impoverishment of the industry which afterward may cause lowering the quality level of the constructions, there has appeared to be an argument about how we redesign the tendering and contracting system. This study, interviewing construction firms about public works, reveals a fundamental direction to the future tendering and contracting system with a suggestion.