Abstract
Requirements definition that is an important work process for a project and may determine the success or failure of system development project tends to draw an ambiguous conclusion, which will lead directly to the failure of such a system construction. Especially, the ICT (Information and Communication Technology) environmental improvement and a shortfall in human resources have increased the use of requirements definition in the distributed cooperative system managed in a telework environment, so that the extreme difficulty of communication in telework spurs such an ambiguous conclusion. Our proposed trust management is that the stakeholders build trust to solve problems caused in Telework requirements definition with extremely high uncertainty factors such as the existence of tacit requirements and ambiguous consensus building. In this paper, we present a model that the trust management process is integrated into the Telework requirements definition process, as measures to minimize the gap between requirements caused due to a lack or discrepancy in communication that is produced easily in Telework requirements definition and to use a negotiation method for solving problems in the following processes provided by the gap between requirements including tacit ones.
