eix2i

eix2i is a theoretical framework for interoperable information exchange among disparate information systems and devices. It envisions a standardized protocol and data model that enable real-time indexing, transformation, and routing of data across organizational boundaries. The name evokes Extended Information Exchange and Interoperability, with the "2i" emphasis on bidirectional communication between senders and receivers.

Architecture and components: The architecture comprises a Core Protocol, a Data Model, an Indexing Engine, a Transformation Layer, and a Security module. Data units, called eix2i packets, carry a payload, metadata, and a reference to a common schema. The data model is ontology-based, supporting declarative mappings between heterogeneous schemas to facilitate cross-system interpretation and reuse.

Operation: Peers negotiate capabilities, exchange digitally signed packets, and rely on the indexing engine for discovery. Transformation rules adapt payloads to recipient schemas, while the security module enforces access control and maintains audit trails to ensure traceability and non-repudiation.

Applications: Proposed use cases include Internet of Things ecosystems, cross-organization data sharing, enterprise integration pipelines, and analytics platforms that require consistent data provenance across systems. By standardizing data units and mappings, eix2i aims to reduce integration effort and improve interoperability.

Status and reception: Since 2023 the concept has appeared in academic and industry pilot projects led by the EIX Consortium. Proponents cite potential gains in interoperability and governance, while critics warn of fragmentation, governance complexities, and limited tooling maturity. No universal standard has been established, and practical implementations remain exploratory.

See also: Data interoperability, Information exchange standards, Ontology-based data integration.