Spring MVC framework, architectural diagram, Java-based web application, modular structure, request-response cycle, DispatcherServlet, HandlerMapping, Controller, Model, View, Service layer, DAO layer, Database, RESTful API, HTTP requests, JSON data exchange, annotations-driven configuration, loose coupling, dependency injection, AOP support, layered architecture, scalable system design, modern web development, clean code organization, UML class diagram, technical illustration, minimalist style, pastel color scheme, soft lighting.