Σύγκριση μεθόδων

	Κατάλογος Σειριακών Εκδόσεων Ulrichsweb Global Serials Directory	Βάση Δεδομένων Web of Science
Πεδίο	Βιβλιομετρία	Βιβλιομετρία
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	1932	1964
Δημιουργός	Bowker (originally R.R. Bowker), now ProQuest LLC	Institute for Scientific Information (ISI), now Clarivate Analytics
Τύπος	Database	Database
Θεμελιώδης πηγή	ProQuest. (2024). Ulrichsweb: Global Serials Directory. Retrieved from https://ulrichsweb.serialssolutions.com/	Clarivate Analytics. (2024). Web of Science Core Collection. Retrieved from https://clarivate.com/webofsciencegroup/solutions/web-of-science-core-collection/
Εναλλακτικές ονομασίες	Ulrichsweb, Ulrich's International Periodicals Directory, Ulrich's Directory	WoS, ISI Web of Science, Clarivate Analytics
Συναφείς	4	5
Σύνοψη	Ulrichsweb is a comprehensive, subscription-based global serials directory cataloging over 300,000 print and electronic journals, magazines, newspapers, and other periodical publications. Developed by ProQuest (originally R.R. Bowker), Ulrichsweb has served librarians and researchers for over 90 years as the authoritative source for journal metadata, publication information, and peer-review verification. A unique feature is Ulrichsweb's verification program: editorial staff contact journals directly to confirm peer-review claims, marking journals as 'refereed' only after validation. This verification process distinguishes legitimate peer-reviewed journals from predatory publishers falsely claiming peer review.	Web of Science (WoS) is the oldest and most established multidisciplinary citation database, maintained by Clarivate Analytics since 1964. It indexes over 21,000 peer-reviewed journals, conference proceedings, and books across sciences, social sciences, and humanities. WoS provides researchers, librarians, and administrators with comprehensive citation tracking, publication metrics, and research evaluation tools essential for literature review, impact assessment, and research strategy.