This conceptual chapter addresses the question why research on ERP systems makes sense. Its purpose is to show that ERP systems are not simply hype or buzz. This chapter adopts the view that ERP systems are technological, organizational, and cognitive in nature. Along those dimensions, ERP systems can be distinguished from other IS, while also identifying similarities. Future research may concern the proposed characteristics of those dimensions and may also relate to their interactions and interrelations. Questions for investigation are presented throughout the paper. Further research promises to extend academic understanding of ERP systems, as a specific domain of IS. As a result, business practice can be supported to actually realize benefits with their ERP systems.