Comparer des méthodes

	Recherche biographique de terrain	Case Study
Domaine	Qualitatif	Qualitatif
Famille	Process / pipeline	Process / pipeline
Année d'origine	1920s (Thomas & Znaniecki); systematised 1980s–1990s	1984 (seminal codification)
Auteur d'origine	W.I. Thomas and Florian Znaniecki (early sociological use); Robert Atkinson and Norman Denzin (methodological codification)	Robert K. Yin (systematised in Case Study Research, 1984)
Type	Qualitative research design	Qualitative research design
Source fondatrice	Atkinson, R. (1998). The Life Story Interview. Sage Publications. ISBN: 978-0761904786	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
Alias	life history method, biographical field research, life story research, field biography	Vaka Çalışması (Case Study), case study design, case study methodology
Apparentées	6	5
Résumé	Field-based life history research is a qualitative design that combines sustained ethnographic fieldwork with in-depth biographical interviewing to reconstruct how individuals have experienced and given meaning to their lives within particular social, cultural, and historical contexts. Unlike archive-only biographical work, the field-based variant requires the researcher to be physically present in the participant's social world over time, gathering both spoken life stories and observational data from that world.	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.