Data supplement
It is also possible to enrich interpretative text publications with so-called data supplements. The publication refers to data that is specifically used to support the publication. In this publication model, research data is most closely associated with the traditional publication process.
Originally, supplementary data were published as an appendix to the interpretative article in the form of figures, tables, or more detailed methodological information. The data were published on the same platform as the text publication, but were not treated in an individually persistent and standardized manner. In this model, the data are part of the article.
In newer models, however, research data can also be published as independent objects on the publishing platform or in parallel to the interpretive article in an external data repository. Referencing is ensured by persistent identifiers. This identifier is then given in the article. In some cases there are collaborations between publishers and data repositories (e.g. Elsevier and PANGAEA). In this model, textual publications and research data can be used and cited, individually.