Abstract
In system development project, change requests cause delivery delay and cost overrun. In case of implementing the change request, the workloads only do not increase monotonically, but it is difficult to evaluate architected function reuse. Furthermore, it is needed to evaluate the impact of system corrections for change request. In this study, we considered the development status in the project and how a quantitative estimate of the workloads required implementing the change request which modeled how to evaluate the influence that it affects an entire system.
