PKP

PKP
Name	PKP
Developer	Public Knowledge Project
Released	1998
Programming language	PHP
Operating system	Cross-platform
License	GNU General Public License

PKP is a suite of open-source software tools developed to support scholarly publishing, peer review, and digital dissemination. It emerged from academic initiatives and research libraries to address accessibility, preservation, and workflow needs in scholarly communication. The suite integrates with digital repositories, indexing services, and institutional infrastructures to enable journals, conference proceedings, and monograph programs to manage editorial workflows and online publication.

Overview

PKP originated as a collaborative effort among academic institutions and research libraries to create tools for open access publishing and scholarly communication. The project produced a family of interoperable applications aimed at journal management, conference management, and preservation. PKP software emphasizes standards-based interoperability with systems such as OAI-PMH, Crossref, ORCID, LOCKSS, and DOAJ to facilitate discovery, citation, and long-term access. Key goals include lowering barriers for independent publishers, supporting multilingual content, and integrating with institutional infrastructures like DSpace, Fedora Commons, and Figshare.

History

PKP began in the late 1990s through collaborations involving the University of British Columbia and research library partners, with early work influenced by initiatives such as the Budapest Open Access Initiative and the Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities. Initial prototypes addressed editorial workflow challenges faced by scholarly editors transitioning from print to digital formats. Over time, PKP released major applications and iterative versions that incorporated standards from organizations like Crossref, NISO, and Project COUNTER. Funding and support came from foundations and agencies connected to academic publishing reform, including partnerships with the Social Sciences and Humanities Research Council (Canada) and other philanthropic entities. PKP's releases paralleled broader shifts in publishing practice visible in milestones such as the growth of arXiv, the rise of institutional repositories at Harvard University and Stanford University, and policy developments at bodies like the National Institutes of Health.

Technical Features and Architecture

PKP applications are primarily implemented in PHP and designed for LAMP-style stacks compatible with MySQL and MariaDB. The architecture adopts modular MVC patterns and plugin frameworks to support customization and extension. Core technical features include native support for metadata schemas such as Dublin Core and integration with identifiers like DOI via Crossref APIs and author identifiers through ORCID OAuth. Interoperability is enabled by OAI-PMH endpoints, metadata export for aggregators such as PubMed Central and Google Scholar, and support for preservation networks including LOCKSS and Portico. Accessibility and internationalization features reflect best practices promoted by organizations like the World Wide Web Consortium and compliance guidance from ISO standards. PKP software also commonly integrates with discovery services and content management systems used in higher education, including Moodle and institutional solutions deployed at universities such as the University of Oxford and the University of Toronto.

Implementations and Projects

Numerous journals, scholarly societies, and university presses have implemented PKP applications to run titles and collections. Examples include independent journals in humanities and sciences hosted by university libraries at institutions like the University of Melbourne, McGill University, and University of Cape Town; society publishers collaborating with organizations such as the American Psychological Association and regional associations; and national platforms coordinated in countries such as Brazil, Mexico, and South Africa. Major projects leveraging PKP software include regional platforms modeled on cooperative infrastructures similar to SciELO, national open access initiatives analogous to J-STAGE, and repository-integration projects linked to Europeana-style aggregators. Cross-institutional consortia and library-led publishing services at institutions like Columbia University and King's College London have used PKP tools to host editorial services and training programs.

Governance and Community

PKP is governed and guided by a multi-stakeholder group combining academic, library, and technical contributors, with governance practices reflecting open source community norms found in projects like Apache Software Foundation and Drupal. Community engagement includes developer sprints, editorial user groups, and annual workshops attended by participants from institutions such as the Library of Congress, British Library, and national research councils. Contributions come from universities, research libraries, and independent developers; collaborations often involve non-profit organizations and funders supporting infrastructure for scholarly communication. Documentation, localization efforts, and training resources are produced collaboratively, with translation and adaptation projects involving partners in regions covered by organizations like the International Council for Science and the Association of Commonwealth Universities.

Adoption and Use Cases

PKP software supports a wide spectrum of use cases: small independent journals seeking low-cost editorial platforms; university presses launching digital-first monograph experiments; conference organizers managing submission and peer review workflows; and consortia implementing national publishing infrastructures. Adoption examples range from specialized disciplinary journals in fields represented by societies such as the American Chemical Society and Modern Language Association to multidisciplinary platforms associated with university libraries at Yale University and McMaster University. Use cases extend to metadata-driven discovery in aggregators like CORE and indexing in services such as Scopus and Web of Science when publishers register identifiers and metadata with aggregators. The flexible plugin model enables integrations with scholarly identifiers, payment and institutional authentication systems like Shibboleth and OpenAthens, and archiving workflows that interface with CLOCKSS.

Category:Open access software