Being a certified repository has several external and internal benefits. For instance, it improves the quality and transparency of internal processes, increases awareness of and compliance with established standards, builds stakeholder confidence, enhances the reputation of the repository, and demonstrates that the repository is following good practices. | Dillo & de Leeuw, 2018
A digital archive can be approved by third parties and thus acquire a data quality seal. Such a seal indicates that, according to third parties, the archive is a Trusted Digital Repository (TDR) and that the research data that have been deposited are future proof. In this section, various available data quality seals are discussed.
Data quality seals
CoreTrustSeal (CTS, n.d.a.) is a data quality seal which combines the efforts from the former Data Seal of Approval (DSA) (CTS, n.d.b.) and the World Data System (WDS) (ISCU, n.d.). The CTS is based on the so-called OAIS model. There are 17 guidelines that the archive must demonstrably comply with. This involves describing and documenting work processes such as the approach to software, hardware and data migration.
The DANS data archive contains a dataset with all the institutions that currently have a CTS seal and the associated documentation to prove it (de Leeuw, 2019). A list of certified data archives can be found on the website of CoreTrustSeal (CTS, n.d.d).
In addition to the CTS basic certification, there are two other more extensive standards:
Click to open/close
4TU.Center for Research Data (n.d.) About 4TU.Centre for Research Data. https://researchdata.4tu.nl/en/about-4turesearchdata/organisation/
CoreTrustSeal (n.d.a.). CoreTrustSeal. https://www.coretrustseal.org/
CoreTrustSeal (n.d.b.). Data Seal of Approval Synopsis. https://www.coretrustseal.org/about/history/data-seal-of-approval/
CoreTrustSeal (n.d.c.). Data Repositories Requirements. https://www.coretrustseal.org/why-certification/requirements/
CoreTrustSeal (n.d.d.). Certified Repositories. https://www.coretrustseal.org/why-certification/certified-repositories/
CCSDS. (2012). Reference Model for an Open Archival Information System (OAIS). https://public.ccsds.org/pubs/650x0m2.pdf
Dillo, I., Leeuw, L. de (DANS) (2018). Mitteilungen der VÖB 71. Nr. 1: Repositorien in Österreich. 162-170. http://eprints.rclis.org/34431/1/1981-7410-1-PB.pdf
Europese Commissie (2018). Turning FAIR into reality. https://ec.europa.eu/info/sites/info/files/turning_fair_into_reality_1.pdf
FAIRsFAIR (n.d.). https://www.fairsfair.eu/
ISO (2017). ISO 16363:2012 [CCSDS 652.0-R-1]. SPACE DATA AND INFORMATION TRANSFER SYSTEMS -- AUDIT AND CERTIFICATION OF TRUSTWORTHY DIGITAL REPOSITORIES. https://www.iso.org/standard/56510.html
Leeuw, L. de (DANS) (2019): Data Seal of Approval (DSA). https://doi.org/10.17026/dans-28z-njxq
Netwerk Digitaal Erfgoed (n.d.). Van zelfevaluatie tot ISO-certificering. Leren Preserveren [cursus]. https://lerenpreserveren.nl/topic/de-vijf-fasen-van-certificering/
Waterman, K., Sierman. B. (2016). Survey on DSA-certified digital repositories. http://www.ncdd.nl/wp-content/uploads/2016/10/201611_DE_Houdbaar_Report_DSA-survey_2016.pdf
World Data System (n.d.) https://www.icsu-wds.org/