So sánh phương pháp

	Mã hóa mở	Hiện tượng luận
Lĩnh vực	Định tính	Định tính
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1967 (Glaser & Strauss); refined 1990 (Strauss & Corbin)	Early 20th century (Husserl ~1900–1913; Heidegger ~1927)
Người khởi xướng	Barney G. Glaser & Anselm L. Strauss (classic grounded theory); elaborated by Anselm Strauss & Juliet Corbin	Edmund Husserl (transcendental); Martin Heidegger (hermeneutic)
Loại	Qualitative research method	Qualitative research approach
Công trình gốc	Strauss, A., & Corbin, J. (1998). Basics of Qualitative Research: Techniques and Procedures for Developing Grounded Theory (2nd ed.). Sage. ISBN: 978-0803959408	Moustakas, C. (1994). Phenomenological Research Methods. Sage. ISBN: 978-0803957466
Tên gọi khác	initial coding, open categorisation, substantive coding	Fenomenoloji, phenomenological inquiry, phenomenological analysis
Liên quan	6	6
Tóm tắt	Open coding is the first, exploratory phase of qualitative data analysis in which raw text — interviews, field notes, or documents — is broken into discrete segments and labelled with short descriptive codes. Developed within grounded theory by Glaser and Strauss and later elaborated by Strauss and Corbin, the procedure is deliberately open and inductive: the analyst reads line-by-line without imposing a predetermined framework, allowing concepts to emerge directly from the data. The resulting codes are then compared and grouped into provisional categories that become the building blocks for subsequent, more selective analysis.	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.