เปรียบเทียบวิธี

	การวิเคราะห์เอกสารภาคสนาม	การวิจัยกรณีศึกษา	การวิเคราะห์เอกสาร
สาขาวิชา	เชิงคุณภาพ	เชิงคุณภาพ	การวิจัยเชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline	Process / pipeline
ปีกำเนิด	1970s–1980s (codified in qualitative research methodology)	1984 (seminal codification)	1920
ผู้ริเริ่ม	Rooted in ethnographic fieldwork traditions; systematised in qualitative education research by Bogdan & Biklen and Hammersley & Atkinson	Robert K. Yin (systematised in Case Study Research, 1984)	Max Weber and Karl Mannheim
ประเภท	Qualitative research strategy	Qualitative research design	Method
แหล่งต้นตำรับ	Bogdan, R. C., & Biklen, S. K. (2007). Qualitative Research for Education: An Introduction to Theories and Methods (5th ed.). Pearson. ISBN: 978-0205483655	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Scott, J. (1990). A Matter of Record: Documentary Sources in Social Research. Polity Press. ISBN: 978-0745608419
ชื่อเรียกอื่น	FBDA, field document analysis, naturalistic document analysis, ethnographic document analysis	Vaka Çalışması (Case Study), case study design, case study methodology	documentary analysis, textual analysis, content analysis of documents, archival research
ที่เกี่ยวข้อง	6	5	4
สรุป	Field-based document analysis is a qualitative strategy in which the researcher enters a real-world setting — a school, clinic, organisation, or community — and systematically collects, authenticates, and analyses documents that are naturally produced and used there. Unlike library-based or archival document analysis, the field context is integral: the researcher observes how documents function in practice, who produces and reads them, and what organisational or cultural work they perform. The approach is widely used in ethnographic, case-study, and institutional research.	Case study research is a qualitative research design that investigates a specific phenomenon, individual, group, organisation, or event in depth within its real-world context. Systematised by Robert K. Yin in 1984, it supports single-case and multiple-case designs and draws on multiple data sources — interviews, observation, documents, and artefacts — to build a rich, contextualised account of a bounded unit.	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.