Therefore, it is appropriate to review the measures of user satisfaction with information systems technology, especially in a web-based environment, which accounts for a major component of the end-user computing environment. the objective of this research was to develop and validate an instrument for measuring user satisfaction in a web-based environment. this research will present significant progress towards keeping the end-user computing satisfaction instrument relevant and applicable under the computing environment of information era. it will be of significance for both practial applications and theoretical applications. from a practical perspective, this revised end-user computing satisfaction (EUCS) instrument can be applied to evalute and user applications, especially web-based information systems.