It is very important to trace whether all the requirements has been reflected in the developed system. However, most existing researches apply Requirement Traceability Matrix(RTM) to the whole SDLC according to the development methodology. RTM has no practical value because it has not only too many pursuit items but also its tracking method is very complicated and the practical management in developing the information system is not accomplished nearly. Therefore, in this study, we proposed an enhanced RTM which was composed of only necessary items and allow us to manage the applied area effectively from Request for Proposal(RFP) or the proposal stage to SDLC stage then confirmed the effect through six actual applicable cases of information system development project of "K" company.