2026/01/29 by Daniel Torres-Salinas, Wenceslao Arroyo-Machado · 1 voice
paper · doi:10.5281/zenodo.18411229
openalex publication_date 2026/01/29 · openalex created_date 2026/01/30 · openalex updated_date 2026/07/01
Abstract The present comparative study examines the three main multidisciplinary bibliographic databases, Web of Science Core Collection, Scopus, and OpenAlex, with the aim of providing up-to-date evidence on coverage, metadata quality, and functional features to help inform strategic decisions in research assessment. The report is structured into two complementary methodological sections. First, it presents a systematic review of recent scholarly literature that investigates record volume, open-access coverage, linguistic diversity, reference coverage, and metadata quality; this is followed by an original bibliometric analysis of the 2015-2024 period that explores longitudinal distribution, document types, thematic profiles, linguistic differences, and overlap between databases. The text concludes with a ten-point executive summary and five recommendations.