Abstract
This paper examines the use of action research in information systems (IS) studies reported in literature over the last twenty-five years. Thirty such field studies and discussion papers on information technology, system design/use or socio-technical systems were reviewed and compared with those from social science. Evolving patterns are noted among these IS studies in terms of their underlying assumptions, study designs and presentation styles. A contemporary IS action research framework is proposed as a conceptual foundation and practical guide for researchers and practitioners interested in action research for IS studies. Its implications in IS research and practice are discussed.