DARIAH member states contribute to the DARIAH community with a diverse range of resources, services and activities. These national contributions are collected and disseminated through the online Contribution Tool.
Each contribution is described using a basic set of core metadata and classified according to the types described in a reference architecture that was developed in the Humanities at Scale project. In addition to the publicly available core metadata, contributions are evaluated internally through a self-assessment and peer review process.
The main goals of this reference architecture are:

- To communicate and to describe contributions in a common language and to have a common understanding of what components should be described.
- To facilitate the description of the interactions between components of the in-kinds, according to the services or functions they provide.
- To offer an architectural reference for other projects and infrastructures that wish to offer similar services to their (research) communities.
- To mitigate and reduce the risk mainly of interpreting the in-kind contributions in different ways, describing them without a common reference model etc.
A visual analytics of part of the content was presented at the DARIAH Annual Event 2019 in Warsaw. Technical documentation as well as user documentation is available online.
