The differences between software quality and information systems quality are discussed from three different viewpoints—managerial, organisational, and engineering—to assist the development of quality improvement programs. The article uses interviews with open ended questions, with three experienced researchers in the information technology field, each representing one of the three viewpoints. It explores the management strategies for IS quality and software quality and discusses how the three distinct ontology and epistemology bases affect the views on quality from the three viewpoints; and questions the relevance of quantitative assessment of software quality to information systems quality. After considering quality improvement as a process reflecting, and influenced by, the interaction between customer and supplier, we outline strategies for organisational change to achieve continuous improvement of information systems quality. The article concludes that though the three perspectives are not mutually exclusive as they all address IT utilisation in organisations, they do emphasise different activities and the different methods available of controlling and improving information systems quality are restricted to those commonly used in the three different fields. More flexible methods are needed to facilitate successful quality improvement programs.