DIA Community Group: Technical Progress and Upcoming Activities

The Data Interoperating Architecture (DIA) Community Group aims to promote open technical collaboration on secure and trustworthy data interoperability across heterogeneous systems and administrative domains. Following the establishment of the group, participating researchers have continued to investigate architectural and protocol-level approaches to data identification, authentication, authorization, and controlled data exchange.

We would like to share an update on the current technical work and outline the next steps for community engagement.

Current Technical Progress

A preliminary internal draft of the Data Interoperating Protocol (DIP) has been developed and is undergoing further technical discussion and refinement. The draft explores how independently administered systems can discover, identify, and exchange data resources under explicit access permissions while preserving the autonomy of participating data providers.

The current work covers several interconnected areas.

Data object representation and identification. The proposed approach treats data resources as identifiable objects associated with structured attributes, including identifiers, resource locations, ownership and authorization information, integrity information, and data classification. The research also considers how heterogeneous identifier schemes and existing Internet mechanisms can support cross-system discovery and resolution.

Data interoperability architecture. The Data Interoperating System (DIS) is organized around three cooperating components: the Data Interchange Service (DIS-X), supporting resource discovery and exchange coordination; the Data Identifier System (DIS-I), supporting identification, metadata management, authentication, and authorization; and the Data Independent Space (DIS-S), providing an independently controlled environment for data storage, management, and access.

Cross-domain authorization and data exchange. The draft investigates interaction procedures covering resource registration, discovery, identity verification, authorization requests and confirmation, controlled data access, authorization revocation, and auditability. A central objective is to enable independently administered systems to interact without requiring data providers to relinquish control over their resources.

Compatibility with existing protocols. The research considers the use of established Web and Internet technologies, including HTTP and DNS, for interoperability-related operations. It also explores how data interoperability capabilities may be exposed to intelligent applications through interfaces compatible with the Model Context Protocol (MCP).

These technical approaches remain under discussion. The group intends to introduce suitable materials for broader review as the work progresses.

Proposed Areas for Community Discussion

To support open collaboration and further refine the architecture, we propose to initiate discussions around the following questions:

1. Data object interoperability: What common metadata and identification capabilities are needed to support data discovery and reference across heterogeneous systems?
2. Cross-domain trust and authorization: How should independently administered systems exchange and verify identity and authorization information while preserving local control?
3. Interoperable data access: Which interaction procedures and interfaces should be standardized to support secure data exchange across different platforms and data spaces?
4. Compatibility and extensibility: How can new interoperability capabilities build upon existing Web standards and accommodate emerging application environments?

Upcoming Community Activities

Over the coming weeks, we intend to resume regular communication through the DIA Community Group homepage and public mailing list. Our initial activities will focus on sharing technical progress, opening focused discussions on interoperability requirements, and collecting feedback on architectural approaches.

Subsequent updates may include technical summaries, use-case analyses, discussion outcomes, and selected draft materials suitable for public review. The development and possible publication of Community Group specifications will be considered as the technical work matures and broader community consensus emerges.

Invitation to Participate

We welcome researchers, developers, industry practitioners, and standards contributors interested in open data interoperability to participate in these discussions.

In particular, we invite comments on the proposed discussion topics, relevant interoperability requirements, practical deployment challenges, and opportunities for alignment with existing Web and Internet technologies.

Community members and other interested parties are encouraged to share their perspectives through the DIA public mailing list: public-dia@w3.org.

We look forward to developing the DIA Community Group as an active forum for technical exchange and collaborative specification development.