手法を比較

	Ulrichsweb Global Serials Directory	Web of Scienceデータベース
分野	計量書誌学	計量書誌学
系統	Process / pipeline	Process / pipeline
提唱年	1932	1964
提唱者	Bowker (originally R.R. Bowker), now ProQuest LLC	Institute for Scientific Information (ISI), now Clarivate Analytics
種類	Database	Database
原典	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/
別名	Ulrichsweb, Ulrich's International Periodicals Directory, Ulrich's Directory	WoS, ISI Web of Science, Clarivate Analytics
関連	4	5
概要	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.