Objective: The aim of this paper is to study the role of information systems in decision-making and public policy- making. For this purpose, the documentary attempts to review the literature and the study of books, articles, and publications, previous research and opinions of experts and professors while expressing concepts in relation to public policy and the role of information systems, information systems, and public policy decisions are examined. Methodology: The decision is to choose a solution from among different solutions to solve the problem. According to Herbert Simon, it is the major component of management and it can be considered synonymous with management. In fact, the decision can be defined how to act or move in a certain direction which is selected deliberately and consciously between various methods to achieve the desired goal. Organizations that in a successful manner can collect, categorize and evaluate internal and external information can outdo competitors. In the organization, the information will form the basis for understanding. Results: The results suggest that systems with influencing the quality, speed, and accuracy of data collected in the decision-making and affect the performance of government decision-making and public policy followed and adopted by the government agencies and public authorities. The more information systems are stronger and quicker and more accurate the more successful would be public administration to adopt policies in problem- solving. Finally, after concluding recommendations on how to use information systems is presented. Conclusion: According to what was said there is a relationship between information systems used by public authorities and efficiency and effectiveness of public policy. Information systems organizations can influence policy decisions made by government agencies and public authorities.
