Ontology-Based Data Access

Ontology-Based Data Access (OBDA) is a method that uses a structured framework, called an ontology, to simplify and unify access to complex, diverse data sources. An ontology defines concepts, relationships, and rules within a specific domain, enabling users to query data using familiar terms. Instead of dealing with each data source's technical details, OBDA translates user questions into technical queries across multiple databases, providing accurate and integrated answers. This approach improves data consistency, reduces complexity, and makes accessing and understanding data more efficient for users, especially in environments with multiple, heterogeneous information systems.