The C4 model (Context, Container, Component, Code) is a software architecture model that is used to describe the structure and relationships of a software system. It is designed to be a simple and flexible way to communicate software architecture to stakeholders, including developers, project managers, and customers.
It can also be used to guide the design and development of the system, by helping to identify the components and their relationships, and by providing a common vocabulary for discussing the architecture. Overall, the C4 model is a useful tool for helping to communicate and understand the architecture of a software system, and for guiding the design and development process.