> For the complete documentation index, see [llms.txt](https://open-dataspaces.gitbook.io/ods-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://open-dataspaces.gitbook.io/ods-docs/ods-ram/v2.md).

# Open Data Spaces Reference Architecture Model (ODS-RAM)

![ODS Logo](/files/e3dRgaXqLrEtM7LkbN75)

An open and scalable foundation for distributed data, built on organizational and national diversity by design.

## ODS-RAM (Open Data Spaces Reference Architecture Model) Repository

ODS-RAM is a reference document published under the design philosophy of Open Data Spaces, providing a reference architecture for distributed data management across enterprises, industries, and national borders. It encompasses the technical paradigm, layered structural model, protocol relationships, and related elements.

## Relationship to the Previous Version

The Whitepaper (ODS-RAM V1) was published on the IPA website in 2025.\
<https://www.ipa.go.jp/digital/architecture/reports/ouranos-ecosystem-dataspaces-ram-white-paper.html>\
Copyright of ODS-RAM V1 belongs to METI (Ministry of Economy, Trade and Industry) and IPA.

## Copyright

Copyright of ODS-RAM V2 belongs to IPA, METI, and NEDO. V2 was compiled and edited by IPA based on the outcomes of NEDO's "Project for the Development and Pilot of a Data Sharing System to Realize the Ouranos Ecosystem."

## License

This document (ODS-RAM V2) is provided under the Creative Commons Attribution 4.0 International (CC BY 4.0).\
Full license text: <https://creativecommons.org/licenses/by/4.0/>