ABSTRACT
Information technology (IT) has an important role to play in business organisations. The assumption that the use of IT is necessary in any business is almost taken for granted. It can be witnessed that continual investments in IT have to be made to sustain productivity in industry. However, it has been widely observed that there is often a gap between an operational IT system and the current business requirements of a organisation. An IT system that was at one time highly supportive could, after a period of time, impose constraints on business operations, and could be regarded as a legacy system.
