Technology plays an important role in e-Government with people and policies to make e-Government more efficient. And much attention and investment has been given to the technological development, so called informatization, of electronic government (e-Government) in Korea. But the measures of quality and efficiency for the e-Government initiatives have not been verified well. For this reason, a great deal of effort has been devoted to develop the measurement of e-Government system; however, a measurement model to support such effort has not been developed enough yet. In this empirical study, we proposed a comprehensive theoretical model for measuring performance of e-Government initiatives and analyzed such model through 112 collected questionnaires from people in charge of informatization in central government administrations.