This chapter reports on the findings of research investigating the influence of information quality on EIS information use as well as the possible impact of ease of use, user involvement, IS maturity, and system sophistication on EIS information quality. To test the research hypotheses, data were collected from 216 U.K.-based executives. A structural equation modeling (SEM) technique for data analysis and model measurement was applied. Information quality was found to influence EIS information use. Also, ease of use, user involvement, the IS integration dimension of IS maturity, and EIS sophistication were found to influence executives’ perception of information quality. Further findings, limitations, and implications for researchers and practitioners are discussed.