手法を比較

	文書収集	談話分析
分野	調査方法論	質的研究
系統	Process / pipeline	Process / pipeline
提唱年	19th–20th century historical methods; contemporary social-science codification c. 2000s	1989 (Fairclough); 1987 (Potter & Wetherell)
提唱者	Rooted in historical and social science traditions; systematized by Lindsay Prior and Glenn Bowen	Norman Fairclough; Jonathan Potter and Margaret Wetherell
種類	Qualitative / mixed data-collection technique	Method
原典	Bowen, G. A. (2009). Document analysis as a qualitative research method. Qualitative Research Journal, 9(2), 27–40.	Fairclough, N. (1989). Language and power. Longman.
別名	document analysis, documentary method, document review, secondary document analysis	DA, Critical Discourse Analysis, Discursive Analysis
関連	3	2
概要	Document collection is a systematic data-collection technique in which the researcher gathers and reviews existing written, visual, or digital records — such as reports, meeting minutes, policies, letters, photographs, or institutional records — as primary or supplementary evidence. It is widely used in qualitative, historical, and mixed-methods research and can stand alone or complement interviews and observation.	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.