Structural Analysis of Well-being Concepts in Matsuo Bashō's Haiku: An Interdisciplinary Approach Using PlantUML C4 Model and DEMATEL Method

In modern society, the pursuit of well-being (WB) has become a crucial issue. This study aims to analytically elucidate the structure of WB concepts inherent in Japanese classical literature, particularly Matsuo Bashō's haiku, by applying engineering and mathematical methods. Specifically, using representative haiku by Bashō as the object of analysis, we model the psychological and philosophical elements underlying them as system components. We then utilize the "PlantUML C4 Model," used in software architecture description, to comprehensively visualize the components of WB concepts. Furthermore, we apply the "DEMATEL method (Decision Making Trial and Evaluation Laboratory)," one of the multi-criteria decision analysis techniques, to quantitatively identify causal relationships and influence levels among elements. This enables us to propose a multi-layered WB conceptual model unique to Japanese culture, encompassing "harmony with nature," "paradoxical integration of emotions," and "sustainable fulfillment through introspection" as demonstrated in Bashō's haiku. This research suggests possibilities for interdisciplinary fusion between classical literary studies and systems engineering, and contributes to the spiritual richness of modern people by presenting a new perspective on WB based on Eastern thought.