手法を比較

	デジタル文書分析	コンテンツ分析	デジタル・エスノグラフィー	談話分析	文書分析
分野	質的手法	質的手法	質的手法	質的研究	質的研究
系統	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	2000s onward (grounded in earlier document analysis traditions)	Systematised through Krippendorff's methodology work; 4th edition 2018	Late 1990s – 2000s	1989 (Fairclough); 1987 (Potter & Wetherell)	1920
提唱者	Adapted from traditional document analysis; digital variant developed by qualitative researchers across disciplines (e.g., Bowen 2009; Prior 2003)	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research	Christine Hine (virtual ethnography); Robert V. Kozinets (netnography)	Norman Fairclough; Jonathan Potter and Margaret Wetherell	Max Weber and Karl Mannheim
種類	Qualitative data analysis method	Qualitative / mixed-method research technique	Qualitative research method	Method	Method
原典	Bowen, G. A. (2009). Document analysis as a qualitative research method. Qualitative Research Journal, 9(2), 27–40.	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661	Kozinets, R. V. (2010). Netnography: Doing Ethnographic Research Online. Sage. ISBN: 978-1847875228	Fairclough, N. (1989). Language and power. Longman.	Scott, J. (1990). A Matter of Record: Documentary Sources in Social Research. Polity Press. ISBN: 978-0745608419
別名	online document analysis, digital text analysis, e-document analysis, digital archival analysis	İçerik Analizi, systematic content coding, quantitative content analysis	online ethnography, virtual ethnography, internet ethnography, netnography	DA, Critical Discourse Analysis, Discursive Analysis	documentary analysis, textual analysis, content analysis of documents, archival research
関連	6	5	6	2	4
概要	Digital document analysis is a qualitative method for systematically locating, appraising, and interpreting documents that exist in digital or online form — including websites, emails, institutional reports, policy files, social media content, and digital archives. It applies the established logic of document analysis to born-digital and digitised sources, enabling researchers to examine meaning, discourse, and institutional practice embedded in contemporary digital texts without recruiting participants.	Content analysis is a systematic research technique for reducing text, visual, or media material into coded categories so that patterns can be counted, compared, and interpreted. Formalised by Klaus Krippendorff in his widely cited methodology textbook (latest edition 2018), the method sits at the boundary of qualitative and quantitative inquiry: it imposes structured, replicable coding on inherently meaning-laden material.	Digital ethnography is a qualitative research method that adapts traditional ethnographic fieldwork to online and digitally mediated settings. Drawing on sustained participant observation, document collection, and sometimes interviews, the researcher immerses themselves in one or more digital communities — social media platforms, forums, gaming spaces, or messaging groups — to understand how culture, identity, and social practice are constructed through digital interaction. The approach recognises that online spaces are not merely reflections of offline life but distinctive sites of cultural production in their own right.	Discourse analysis is a qualitative research methodology that examines how language, communication, and power shape meaning, identity, and social reality. Developed across linguistics, sociology, and psychology (particularly by Norman Fairclough and Jonathan Potter), discourse analysis goes beyond content to analyze language use as a social practice that constitutes and reflects power relations, ideologies, and social structures.	Document analysis is a systematic qualitative research method for examining written, visual, or audiovisual sources—such as policy documents, historical records, organizational records, media reports, emails, social media posts, photographs, or videos—to extract meaning, identify patterns, and understand social phenomena. Developed by Weber and Mannheim in early 20th-century sociology, the method bridges historical research, content analysis, and textual interpretation. Document analysis is used across disciplines to understand organizational change, policy evolution, media representation, historical events, and cultural meaning. Documents provide evidence of what organizations, institutions, or societies value, decide, and communicate, often revealing contradictions between policy and practice.