System architecture refers to the structured framework that defines the components, relationships, and principles guiding the design and organization of a system. It serves as a blueprint, outlining how different parts of a system interact and work together to achieve specific goals. This can apply to various fields, including software development, network design, and hardware configuration. In software development, for example, system architecture helps developers understand how different modules or services communicate, ensuring efficient performance and scalability. By establishing clear guidelines and standards, system architecture facilitates better planning, implementation, and maintenance of complex systems, ultimately leading to improved functionality and user experience.