The Port of Singapore Authority (PSA) used information technology (IT) extensively to create a high-tech port that has become the busiest port in the world. Now corporatised as a commercial port operator, PSA Corporation Ltd employs four key management success factors in managing IT to meet the demands and challenges facing port operators. They are: (1) having a business-driven IT investment; (2) aligning business and IT plans; (3) maintaining a ̄exible and extensible IT infrastructure; and (4) encouraging IT innovation and creativity. These management success factors are discussed and examples are given to illustrate how they help PSA more effectively leverage IT to streamline operations and sustain its competitive advantage. q 2000 Elsevier Science B.V. All rights reserved.