The global market demands highly efficient communications, and time-to market pressures require ever-greater efficiency; rapidly changing customer requirements demand organizations that can react quickly. And as levels of management are downsized and workers' responsibilities increase, they need more information, and they need it faster to help the organization compete. This distribution of information has resulted in an unprecedented dependence on information systems. From 1984 to 1994, the number of computer jobs grew 150%.7 The sector is ....