So sánh phương pháp

	Phân tích bán ngữ nghĩa số	Phân tích Diễn ngôn Phê phán
Lĩnh vực	Định tính	Định tính
Họ	Process / pipeline	Process / pipeline
Năm ra đời	Classical semiotics early 20th century; digital adaptation from the 1990s onward	Late 1970s–1990s (systematised ~1979–1995)
Người khởi xướng	Rooted in Ferdinand de Saussure and Charles S. Peirce; digital applications developed by scholars such as David Chandler and Gunther Kress	Norman Fairclough; Teun A. van Dijk; Ruth Wodak
Loại	Qualitative interpretive analysis	Qualitative research method
Công trình gốc	Chandler, D. (2007). Semiotics: The Basics (2nd ed.). Routledge. ISBN: 978-0415363969	Fairclough, N. (1992). Discourse and Social Change. Polity Press.
Tên gọi khác	DSA, digital semiotics, online semiotic analysis, digital sign analysis	CDA, Critical Linguistics, Discourse-Historical Approach, Dialectical-Relational Analysis
Liên quan	5	6
Tóm tắt	Digital Semiotic Analysis applies the classical study of signs and meaning-making to content produced and circulated in digital environments. It examines how signifiers — words, images, icons, sounds, emojis, hyperlinks, and interface conventions — create meaning within digital texts such as websites, social media posts, memes, and online advertisements. The method draws on Saussurean dyadic semiotics and Peircean triadic semiotics, extended by Roland Barthes's connotation and myth framework and by contemporary multimodal semiotic theory developed for screen-based media.	Critical Discourse Analysis (CDA) is a qualitative method that examines how language in texts and talk constructs, sustains, and challenges relations of power, ideology, and social inequality. Drawing on linguistics, social theory, and critical philosophy, CDA treats discourse not merely as communication but as social practice — a site where dominance is reproduced and where resistance can be articulated. Developed in the late twentieth century by Norman Fairclough, Teun van Dijk, and Ruth Wodak, among others, CDA is applied to political speeches, media texts, policy documents, educational materials, and institutional interactions.