Are Antecedents in the Adoption Stage Affecting IS Effectiveness in the Implementation Stage

Information systems (IS) effectiveness is a multidimensional construct which can be influenced by individual characteristics, individual beliefs about the system and institutional factors. Prior researchers have examined the effects of a wide range of factors on IS adoption and successful IS implementation. However, these factors are separated in IS adoption and postadoption research areas and isolated from each other in affecting IS effectiveness. This study demonstrates the relevance of these factors and organizational factors moderating the effects among the individual characteristics, beliefs about the system and IS effectiveness. The purpose of this study is to give a comprehensive picture of IS effectiveness using the multilevel analysis.