Qualitative and quantitative information is required to support the life cycle management of the Core Data Resources and to shape future policy proposals. This information will be gathered by a defined and iterative process such that trends can be observed over time. In this document, we provide a plan and some concrete examples of how data for these indicators can be collected and kept up-to-date. This work depends on a trusted collaboration between the managers of the ELIXIR Core Data Resources (CDRs), the ELIXIR Hub, and tools and infrastructure providers who facilitate access to the necessary information. Data must be treated carefully and - depending on the dataset and institution involved - might only be accessible on a granular level by a restricted set of people and for a clearly defined purpose: the selection of Core Data Resources and their monitoring as part of their life-cycle management. However, there will also be a need to use the data collectively in communications that describe the impact of the ELIXIR CDRs as a whole.

{"references": ["Durinx C, McEntyre J, Appel R et al. Identifying ELIXIR Core Data Resources [version 2; referees: 2 approved]. F1000Research 2017, 5 (ELIXIR):2422 (doi: 10.12688/f1000research.9656.2)"]}