An organisation consists of various interdependent decision making units at every level of management and department. All these separate departments take decisions for their respective fields to achieve the desired common organisational objectives. The organisation as a whole needs to set its targets, draft plans and formulate various policies. These activities are based on the information (in form of data) regarding the past experiences and expected future conditions. It is on the basis of this information that an organisation allocates its resources and attempts to accomplish its determined targets. Thus, it can be said that on one hand, information facilitates the decision making process while on the other hand, decisions took in the past acts as a pool of information in the future.