Data integration technologies underwent a series of evolutions. The move started by earlier attempts of integration within databases management systems. It is common in today’s organisation to find more than one form of data integration technology used together, sometimes with overlapping functionalities between these data integration tools and other Enterprise Application Integration (EAI) tools. Subsequently, it becomes more important to understand the differences and similarities between these data integration tools in order to help build a consolidated view of the corporate data. The paper will also address the impact of Service Oriented Architecture (SOA) on the future of data integration.
Keywords: data integration, EII, ETL, data replication, EAI, SOA