So sánh phương pháp

	Nghiên cứu tình huống theo chiều dọc	Hiện tượng luận
Lĩnh vực	Định tính	Định tính
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1984–1990 (foundational methodological codification)	Early 20th century (Husserl ~1900–1913; Heidegger ~1927)
Người khởi xướng	Robert K. Yin (case study methodology); Andrew M. Pettigrew (longitudinal field research)	Edmund Husserl (transcendental); Martin Heidegger (hermeneutic)
Loại	Qualitative research design	Qualitative research approach
Công trình gốc	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
Tên gọi khác	longitudinal case research, panel case study, repeated case study, temporal case study	Fenomenoloji, phenomenological inquiry, phenomenological analysis
Liên quan	6	6
Tóm tắt	A longitudinal case study is a qualitative research design that combines the in-depth, contextually rich focus of case study methodology with repeated data collection across multiple time points. Rather than capturing a single snapshot, it follows one or a small number of cases — an individual, group, organisation, or programme — over months or years to trace how processes, relationships, and meanings evolve. This design is well suited to questions about how and why things change, not merely what the state of affairs is at one moment.	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.