LKH ARP Research Data Repository project aims to establish a central data repository system supporting the whole ELKH research network, providing research data repository and related, integrated data- and metadata-management services.

The mission of the ARP project is twofold: it designs and establishes the central system components and the network services of a national federated research data repository network and on the other hand creates the federated mechanisms and system components that enable to organize the existing and future research data repositories of ELKH into a single, uniform national network system.

The system will also centrally provide research data repository services to the institutions and/or disciplines, research teams that cannot or will not establish and manage their own research data repository, filling an important gap by doing so.

In the article we introduce the goals set by the project, the logical architecture of the system to be built, the functions and interoperability mechanisms of the system components, and the way the system facilitates the implementation of the FAIR principles in the process of managing national research data.

The ELKH ARP system will support the introduction and widespread use of RO – Research Object, that enables the new, FAIR-sensitive level of research data management in Hungary. To achieve this, RO-Crate, the actual software implementation of the concept of RO, is fully supported within the system. The RO infrastructure that is to meet the requirements to apply RO-Crate technology in Hungary forms an integral part of the federated research data repository network (storage and other) services.

The ELKH ARP repository network federated mechanisms, integrated data management methods (protocols and policies) will ensure, in the course of further development of the system, the interoperability between the components on data transfer, semantic, institutional, and operational levels in the long term.