The main purpose of this study was to establish a model to measure the relationship of successful factors for e-government efficiency. Theoretical bases were employed for the hypothesis's formulation. The variables identified were classified as internal and external factors, maturity, strategies, interoperability, and standards as independent factors. The exchange of information was identified as the dependent factor. As part of the methodology, a survey was administered to 87 specialists in information systems and statistics. A multivariate analysis was applied to generate the structural equation model. The results showed that internal and external factors such as organizational, economic, and political influences, legislative, and technical; and private procedures and interagency agreements are not related to the exchange of information. However, when internal and external factors are related with maturity, it generates a positive relationship with the exchange of information. There exists association in the collaboration of two or more agencies, and the potential to increase productivity and efficiency of government operations. The research model explains the existence of three composite relationships where information exchange occurs and that justify the efficiency of e-government. In a scenario where change is a constant, e-government faces the challenge of dealing with the technological trends on which to build the resources to enable the exchange, integration, dissemination, and effective use of multiple data sources.