Definition of Data Integration
Within most data management frameworks, the data integration and interoperability (DII) knowledge area is concerned with the movement and consolidation of data within and between applications and organizations.
Data integration is the process of consolidating data into consistent forms, from multiple sources into a single, unified view. This process typically involves the extraction, transformation, and loading (ETL) of data from various sources, such as databases, files, or other systems, into a central repository or data warehouse. The goal of data integration is to enable the consolidation and analysis of data from different sources, making it more accessible and useful for business intelligence and decision-making. Data integration can be achieved through a variety of methods, including data warehousing, data federation, data virtualization, and data replication.