In modern software architecture, the gap between high-level business requirements and low-level code implementation is often where projects fail. Stakeholders need context, developers need structure, and architects need a shared language. The C4 model (Context, Containers, Components, and Code) has emerged as the industry standard for visualizing software architecture at varying levels of abstraction. This guide focuses specifically on the Container Diagram, the second level of the C4 model, using the “Internet Banking System” as a practical case study. We will explore how to leverage Visual Paradigm, its AI Chatbot, and the VPasCode scripting language to create, maintain, and evolve these diagrams efficiently. By integrating AI-driven assistance with Infrastructure-as-Code principles, teams can transform static diagrams into living architectural documentation.