XDXDR

XDXDR is a cross-domain data exchange framework designed to enable secure, auditable sharing of structured data between disparate organizations and systems. The project defines data packaging, metadata schemas, access-control policies, and a transfer protocol that emphasizes interoperability and traceability.

Originating from the XDXDR Alliance, a collaborative effort of researchers, industry partners, and standards bodies, the framework was first proposed in 2019 and published as an open standard in 2020. It is maintained through a governance process that invites community input and provides reference implementations.

Its architecture is modular and service-oriented. Data is wrapped in packages containing a payload and a manifest with cryptographic checksums and provenance metadata. Access is controlled by policy rules that describe who may retrieve or transform data and under what conditions. The framework supports both batch transfers and streaming data, and can be deployed in fully centralized, federated, or hybrid environments. Provenance is captured via tamper-evident records and optional use of distributed ledgers in certain deployments.

XDXDR has been proposed for regulated domains such as healthcare, finance, and research, where data sharing requires auditable trails and consent management. It aims to reduce integration friction by providing a common vocabulary for data types, schemas, and governance rules.

Analysts say the approach offers strong interoperability but note challenges in governance, performance, and privacy. Adoption varies by sector, with entities weighing the benefits of standardized exchange against implementation complexity and vendor ecosystems.

---