Resumen
MIS is an organizational information system which supports not only operations but also the management processes by providing the 'right information to the right people at the right time and at the right cost. The information is said to be right when it possesses all the attributes like timeliness, accuracy and reliability, adequacy, consistency and uniformity, brevity, need based, economy, predictive ability, etc. Right people means 'one information not to all the decision makers and all the information not to one decision maker. Right time and right cost do not need any explanation. When these four rights are right, MIS is bound to be right and effective in discharging its role.