手法を比較

	複数事例基盤の記号論的分析	談話分析
分野	質的手法	質的研究
系統	Process / pipeline	Process / pipeline
提唱年	1980s–1990s (consolidation in communication and marketing research)	1989 (Fairclough); 1987 (Potter & Wetherell)
提唱者	Synthesised from Peircean/Saussurean semiotics and Yin's multiple case study logic; Floch (1990) is a key applied exemplar	Norman Fairclough; Jonathan Potter and Margaret Wetherell
種類	Qualitative comparative research design	Method
原典	Floch, J.-M. (1990). Semiotique, marketing et communication: sous les signes, les strategies. Presses Universitaires de France. [English translation: Semiotics, Marketing and Communication, Palgrave Macmillan, 2001.] ISBN: 978-0333776858	Fairclough, N. (1989). Language and power. Longman.
別名	multi-case semiotic analysis, comparative semiotic case study, cross-case semiotic inquiry, MCSA	DA, Critical Discourse Analysis, Discursive Analysis
関連	5	2
概要	Multiple case-based semiotic analysis is a qualitative research design that applies semiotic frameworks — the systematic study of signs, codes, and meaning-making — across two or more purposively selected cases. By combining the comparative logic of multiple case study research with the interpretive tools of semiotics (structural, Peircean, or Greimasian), it enables researchers to uncover how meaning is constructed and varied across distinct cultural, organisational, or communicative contexts.	Discourse analysis is a qualitative research methodology that examines how language, communication, and power shape meaning, identity, and social reality. Developed across linguistics, sociology, and psychology (particularly by Norman Fairclough and Jonathan Potter), discourse analysis goes beyond content to analyze language use as a social practice that constitutes and reflects power relations, ideologies, and social structures.