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Data model
The OpenAIRE Graph comprises several types of entities and relationships among them.
The latest version of the JSON schema can be found on the Downloads section.
The figure above, presents the graph's data model. Its main entities are described in brief below:
- Research products represent the outcomes (or products) of research activities.
- Data sources are the sources from which the metadata of graph objects are collected.
- Organizations correspond to companies or research institutions involved in projects, responsible for operating data sources or consisting the affiliations of Product creators.
- Projects are research project grants funded by a Funding Stream of a Funder.
- Communities are groups of people with a common research intent (e.g. research infrastructures, university alliances).
- Persons correspond to individual researchers who are involved in the design, creation or maintenance of research products. Currently, this is a non-materialized entity type in the Graph, which means that the respective metadata (and relationships) are encapsulated in the author field of the respective research products.
:::note Further reading
A detailed report on the OpenAIRE Graph Data Model can be found on Zenodo. :::