Description: Data integration from multiple sources is the process of combining information from various databases, applications, and systems into a unified view. This process is fundamental in the field of business intelligence (BI), as it allows organizations to gain a holistic view of their operations and make informed decisions based on consolidated data. Data integration can include the collection of structured and unstructured data from internal sources such as enterprise resource planning (ERP) and customer relationship management (CRM) systems, as well as from external sources like social media and market data. BI tools facilitate this integration through techniques such as extraction, transformation, and loading (ETL), ensuring that the data is accurate, consistent, and in a suitable format for analysis. Additionally, data integration enables the creation of interactive reports and dashboards that help users visualize trends and patterns, thereby enhancing responsiveness to changes in the business environment. In a world where the amount of generated data is overwhelming, effective integration becomes a strategic asset for organizations looking to remain competitive and agile in decision-making.