手法を比較

	フィールドベースの複数ケーススタディ	現象学
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1984 (Yin's foundational text); 2006 (Stake's multiple-case elaboration)	Early 20th century (Husserl ~1900–1913; Heidegger ~1927)
提唱者	Robert K. Yin; Robert E. Stake	Edmund Husserl (transcendental); Martin Heidegger (hermeneutic)
種類	Qualitative research design	Qualitative research approach
原典	Yin, R. K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Moustakas, C. (1994). Phenomenological Research Methods. Sage. ISBN: 978-0803957466
別名	comparative case study, multi-site case study, cross-case study, multiple-case design	Fenomenoloji, phenomenological inquiry, phenomenological analysis
関連	5	6
概要	A field-based multiple case study is a qualitative research design in which the researcher conducts sustained, in-person investigation at two or more bounded real-world sites (the cases), gathering data through direct observation, interviews, and document analysis. By systematically comparing what is found across cases, the researcher can identify both shared patterns and meaningful differences, producing analytic conclusions that are more robust and transferable than a single-site study allows.	Phenomenology is a qualitative research approach that investigates how participants live through and make sense of a specific experience. Rooted in the philosophy of Edmund Husserl and extended by Martin Heidegger, it aims to reveal the essential structures of lived experience rather than to measure or predict outcomes. The two most widely applied variants are Husserl's transcendental phenomenology, which seeks universal essences, and Heidegger's hermeneutic phenomenology, which emphasises interpretation within context.