เปรียบเทียบวิธี

	การรวบรวมเอกสาร	การวิเคราะห์วาทกรรม
สาขาวิชา	ระเบียบวิธีสำรวจ	การวิจัยเชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	19th–20th century historical methods; contemporary social-science codification c. 2000s	1989 (Fairclough); 1987 (Potter & Wetherell)
ผู้ริเริ่ม	Rooted in historical and social science traditions; systematized by Lindsay Prior and Glenn Bowen	Norman Fairclough; Jonathan Potter and Margaret Wetherell
ประเภท	Qualitative / mixed data-collection technique	Method
แหล่งต้นตำรับ	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.
ชื่อเรียกอื่น	document analysis, documentary method, document review, secondary document analysis	DA, Critical Discourse Analysis, Discursive Analysis
ที่เกี่ยวข้อง	3	2
สรุป	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.