The remainder of this paper is organized as follows. To ground our investigations, we first present the research context, namely OSS development. We then briefly review the literature on IS success to see what measures might be adopted and to identify problems in applying others. We then reconsider the underlying vision of system development to identify additional success measures that might be appropriate for OSS. For each measure, we provide examples of how they might be used in the context of a study of OSS. Finally, we compare our selection of measures to the opinions of OSS developers as expressed on SlashDot, a popular Web-based discussion board (http://slashdot.org/). The comparison suggests additional measures that might be incorporated to develop a fuller understanding of OSS project success. We conclude by making some suggestions for future research