This research attempts to explore and identify eventual relationships between the evolution of ERP systems and information systems integration or disintegration. The aim of this research is to know if the relationships between the ERP systems and the information systems are guided by certain factors and, as a result, to understand, more in-depth, the factors affecting these relationships. More precisely, this analysis aims to study whether assigned values given to these factors could guide the evolution of ERP systems in a manner that promotes IS integration; and if the opposite assigned values to these same factors could guide the evolution of ERP systems in a manner that provokes IS disintegration instead.