A knowledge base representing the state of information systems success research in the MIS formative period of 1981-87 was published previously. The knowledge base relates five independent variables (organizational environment, user environment, IS operations environment, IS development environment and information systems) to information systems success. This chapter enhances the knowledge base by presenting it in different views. The summary views provide a big picture view of the relationship between an independent variable and information systems success, whereas the detailed views allow researchers to drill down to individual studies that investigated such a relationship. The chapter also illustrates how the knowledge base can be updated to facilitate the ongoing research of information systems success.