This chapter starts with the proposition that information is vital to successful management. If this is the case, the recent dramatic developments in various aspects of information technology present enormous opportunities for augmenting managerial effectiveness, and hence for improving organisational efficiency and performance. The possible applications of the new technology are, at least in theory, relevant to virtually every organisational activity in almost every organisation. Perhaps the most significant element in the new technology thus far has been the development of smaller, faster, cheaper and more powerful computers, such that the latest generation of microcomputers has a quite amazing capability. The customers' computers could be connected directly to the sales department and thus information from such sources fed into the central computing network of an organization. The consequences in a highly integrated computerised management information system may cause various participants to manipulate inputs or the system itself in order to obtain outcomes valued by them.