Data integration involves the consolidation of data from different sources into a single set of data so that it offers a single combined view of all the data. It also aims to provide users with consistent delivery and access to data to fulfill the data needs of all business processes and applications. Data integration is a critical part of the overall process of data management. There are various data integration methods; each comes with its own features and capabilities to fulfill diverse requirements. The ultimate aim of data integration is to enable independent applications to function together seamlessly and provide consistent output.