手法を比較

	ビジュアル分析	コンテンツ分析
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	Formalized in social sciences from the 1980s–2000s	Systematised through Krippendorff's methodology work; 4th edition 2018
提唱者	Roots in art history and semiotics (Panofsky, Barthes); social science applications developed by Gillian Rose and Marcus Banks	Klaus Krippendorff (systematic formulation); roots in early 20th-century communications research
種類	Qualitative research approach	Qualitative / mixed-method research technique
原典	Rose, G. (2016). Visual Methodologies: An Introduction to Researching with Visual Materials (4th ed.). Sage. ISBN: 978-1473943056	Krippendorff, K. (2018). Content Analysis: An Introduction to Its Methodology (4th ed.). Sage. ISBN: 978-1506395661
別名	visual research methods, image analysis, visual inquiry, visual data analysis	İçerik Analizi, systematic content coding, quantitative content analysis
関連	6	5
概要	Visual analysis is a qualitative research approach that systematically examines visual materials — such as photographs, films, artworks, advertisements, and diagrams — to understand how meaning is produced, communicated, and interpreted. Drawing on traditions from art history, semiotics, and social science, it treats visual objects as data that carry social, cultural, and ideological significance. Multiple frameworks exist, from formal compositional analysis to discourse-based and audience-reception approaches.	Content analysis is a systematic research technique for reducing text, visual, or media material into coded categories so that patterns can be counted, compared, and interpreted. Formalised by Klaus Krippendorff in his widely cited methodology textbook (latest edition 2018), the method sits at the boundary of qualitative and quantitative inquiry: it imposes structured, replicable coding on inherently meaning-laden material.