A supergraph is an architecture that combines an operating model and an architectural pattern, facilitating designing, building, maintaining, and operating a collection of data domains as a unified graph of composable entities and operations. It leverages GraphQL to provide a platform-agnostic data definition layer, allowing for clear business value and reducing complexity in data governance. By automating GraphQL development and operation, organizations can achieve a composable data layer, simplify data access, and establish self-correcting processes. The supergraph paradigm aligns with the real world, addressing the challenges of managing ever-changing legal and regulatory requirements and the organization's evolving data environment.