Management information system (MIS) , Types of MIS & It's different objectives.

The word MIS  stands for "Management Information System" . It has 3 keywords,namely,'Management' , 'Information'  and  'system' .It means the interaction between human and the computer to collect,store and use the acquired data for effective and efficient planning which helps in accomplishing the central objective of the organization.These data are used for developing the information which helps in effective decision making.Management information system is mainly concerned with the different levels of management which helps in maintaining the good will and  the sound growth of the organization.In short,we can  say that management information system is the management of information systems which are required in an organization to manage it's functioning. 
                                                           Based on the functioning of different levels of management,the management information system is of vivid nature and can be broadly classified into 4 sub-categories.These are as follows:

• Decision support system (DSS):- It is used by the top level of management for taking strategic decisions,which are long term decisions.The top level management includes board of directors,chairman,chief executive etc.The decisions made are often called unstructured or semi-structured decisions.
• Executive information system (EIS) :- It is used by middle level of management for taking tactical decisions,which are short term decisions.The middle level management includes deputy managers,head of departments etc.
• Transaction processing system (TPS) :- It is used by shop floor level or the lower level of management  for dealing with day to day activities which aims at improving the routine business activities.The lower level includes senior supervisors,intermediate supervisors etc.
• Office automation system (OAS) :- It is also known as operating level and is mainly used by office staffs,clerks etc. which helps in increasing the efficiency and productivity of office workers,staffs etc.It is the newest and most rapidly expanding computer based information system.                                                                                                                                                                                     Management information system can also be explained with the help of pyramidal structure as drawn below:                                                                                                                                          
  
                                                                                                                                                                                               Objectives of Management information systems:-                                                                                                                                                                                                                                                         Management information system uses the information which is timely,accurate,complete in all respects and is practically applicable.There are several objectives of management information system which play a crucial role in decision making.These objectives are as follows:-
• The most dominating objective is providing the right information, at the right place,to the right person in order to make the most appropriate selection for effective decision making.
• It provides tools for planning and controlling which helps in optimizing and enhancing the growth of organization in the best effective manner.
• It provides useful information for controlling and coordinating the activities of the organization to maintain the pace with market strategy , updated technology etc. which leads the organization to the top.
• It records,stores and retrieves information for proper functioning of organization which helps in accounting , controlling and managing functions of the organization and hence,promotes the growth of the organization.