금융 차세대시스템 구축방식의 의사결정에 대한 연구

This study defines the Next Generation System(NGS) built by domestic financial businesses and classifies their architec-ture into two typical types according to the duration of the project and the relative cost of IT investment in the short term : the Big Bang approach and the Phase approach. Herein, we study the two approaches as alternatives in developing the Next Gen-eration System, and derive the factors that are to be considered in the evaluation of the two alternatives for financial busi-nesses. The set of standards for the choice between the two models are grouped into categories that constitute performance evaluation for IT - Cost, Performance and Risk. We drill down further into each category to second and third subordinate lev-els to derive detailed selection criteria. Based on the criteria drawn from the study, we conduct a survey with information sys-tem planners, IT managers and specialists at financial companies who are currently planning, developing or have completed a NGS. Results are analyzed using the AHP methodology to compare and understand the different approach in the implementa-tion of NGS for financial business. According to the research result, survey respondents showed the different evaluation weight between alternatives by industry, but the Phase approach showed higher preference than the Big Bang approach in the building method.