Data Sources Used By JCT
A number of data sources are used by the JCT, primarily for two purposes.
1. For the search interface
Firstly, remote datasources are used to populate the “autocomplete” feature in the search boxes for journal titles and for institutions. This feature provides a convenience to the user, allowing them to begin typing a journal title or institution name and have the system supply matches, allowing the user to rapidly select the one they want. The fact that a journal title - or an institution name - appears in such a list does not imply any kind of endorsement of them by the Journal Checker Tool or by cOAlition S. These lists are offered simply as a convenience to the user in the search interface. For journal titles, the datasource used by the JCT is Crossref. For institutions, the datasource used by the JCT is ROR.
2. For the Plan S compliance checks
In addition to CrossRef and ROR, JCT uses the following datasources to inform its calculation of Plan S compliance.
DOAJ (Directory of Open Access Journals)
DOAJ provides a high quality, manually curated list of fully OA journals, and is therefore perfectly suited to the full OA compliance check for Plan S. DOAJ provides a curated data feed to JCT.
Open Access Button
Open Access Button Permission System provides clear information on how 85% of papers can be self-archived. Information provided includes which versions can be shared, licenses allowed, computed deposit statements and embargoes. Open Access Button provides a curated data feed to JCT.
ESAC Agreement Registry
The ESAC Agreement Registry is a community-curated registry of Transformative Agreements (TAs) between publishers on the one hand and academic institutions (mainly represented in consortia) on the other. The Plan S policy for recognising a TA requires that it be registered in ESAC and offer authors the option to publisher under a CC-BY licence. Therefore, the JCT derives its list of recognised TAs from the ESAC website.
The information provided by the Journal Checker Tool represents cOAlition S’s current understanding in relation to the policies of the journals contained within it. We will endeavour to keep it up to date and accurate, but we do not accept any liability in relation to any errors or omissions.