How many DOI integrations are possible with OJS?

Open Journal Systems (OJS) is an open-source publishing platform that is widely used by scholarly journals, publishers, and institutions to manage the publication process. DOI integration is a valuable feature for OJS, as it allows journals to assign DOIs to their articles and other published content, improving the discoverability and citability of their work.

The number of possible DOI integrations with OJS largely depends on the specific version of OJS being used, the plugins or extensions available, and the DOI registration agencies with which the journal is registered. As of my last knowledge update in January 2022, here are some common ways in which DOI integration can be achieved with OJS:

1. Crossref Plugin: OJS provides a Crossref DOI plugin that allows journals to integrate with Crossref, a well-known DOI registration agency. This plugin facilitates the assignment of DOIs to articles, ensuring that published content is easily citable and discoverable.
2. Custom DOI Plugins: Some journals or institutions may develop custom DOI plugins or extensions for OJS. These custom solutions can be tailored to specific DOI registration agencies or requirements.
3. DataCite Integration: For journals focusing on research data, integrating with DataCite is essential. DataCite offers its own plugin for OJS to assign DOIs to datasets associated with articles. This ensures that both the article and its supporting data are uniquely identified.
4. DOI Registration Agency Choice: Journals can choose their preferred DOI registration agency and integrate OJS accordingly. Depending on the agency, specific plugins or workflows may be available. Some agencies offer direct integration options with OJS.
5. Manual DOI Entry: In cases where direct integration is not possible, journal administrators can manually enter DOIs provided by their chosen agency into OJS. While this may be less automated, it still ensures DOI assignment and linking to published content.
6. XML Export: OJS supports the export of metadata in various formats, including XML. Journals can use these exported files to facilitate DOI assignment and integration with external systems.

It’s important to note that the integration process and available options may have evolved since my last knowledge update. OJS is a dynamic platform with an active user and developer community, so new plugins and features may have been developed to enhance DOI integration. Journal administrators and publishers interested in implementing DOI integration with OJS should consult the platform’s official documentation and community resources for the most up-to-date information and solutions.