Management Information Systems is of paramount importance to reach effective decisions in an organization. The literature presented in this study explained the significant role of MIS in the decision-making process enhancement in an organization. MIS is deemed to be an integrated user-machine system that provides information to support operations, management, and decision-making functions at various levels of an organization. Organizations are aware that MIS is a special-purpose system useful for management objectives. The study has highlighted that MIS should be accessible in supplying appropriate and high-quality information from its generation to its users. To MIS, to be vital and effective, a carefully conceived, designed, and executed database should exist to communicate the adaptive decisions.