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# Data model
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The OpenAIRE Research Graph comprises several types of entities and [relationships](./relationships) among them.
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The latest version of the JSON schema can be found on [Bulk downloads](../download).
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![Data mode](./assets/data-model.png)
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The figure above, presents the graph's data model.
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Its main entities are described in brief below:
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* [Research Products](entities/result) represent the outcomes of research activities.
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* [Organizations](entities/organization) correspond to companies or research institutions involved in projects,
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responsible for operating data sources or consisting the affiliations of Product creators.
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* [Funders](entities/funder) (e.g. EC, Wellcome Trust) are agencies responsible for a list of Funding Streams.
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* [Funding Streams](entities/funding-stream) represent investments (funding actions) from Funders (e.g. FP7 or H2020).
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* [Projects](entities/project) are research projects funded by a Funding Stream of a Funder.
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* [Data Sources](entities/data-source) are the resources used to collect metadata for the graph objects
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<span className="todo">TODO: communities are present in the existing documentation instead of funders and fundins streams</span>
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:::note Further reading
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A detailed report on the OpenAIRE Research Graph Data Model can be found on [Zenodo](https://zenodo.org/record/2643199).
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:::
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