This volume contains the edited proceedings of the Sixth International Conference on Software Quality Management, SQM ‘98, held in April 1998 in Amsterdam, organized by the Quality Special Interest Group of the British Computer Society. These conferences attract over 100 people delegated equally from industry and academia and also equally from the UK and abroad. The objective of this series of annual conferences is to promote international co-operation among those concerned with software quality and process improvement, by creating a greater understanding of software quality issues and by sharing current research and industrial experience. The papers cover a broad spectrum of practical experience and research. The topic areas include process improvement, maintaining a quality management system, quality metrics, human factors, project management issues, software tools and approaches to systems development.