Governments around the world are actively promotingelectronic government (e-Government) initiatives to provide fast, convenient and innovative services. Most previous studies focus mainly on discussing the affecting factors of public's satisfaction toward information services provided by their government in the context of voluntary adoption. Inorder to effectively enable and provide e-Government service, most government agencies have been urged to use specific information systems (IS) to implement functions for information and records management. Under such mandated IS deployment, the interaction among regulatory body, government agency and end-users critically shapes the deployment of system. However, few researches examined the technology adoption in mandatory setting. The purpose of this study is to propose a model for user’s satisfaction in e-Government and clarify the relationship among strategy formulation, social influence, perceived performance, and end-users’ satisfaction of IS in government agency through empirical investigation. The empirical findings suggest that strategy formulation is the antecedent of users’ satisfaction in using IS through the effect of organizational resources and individual performance.