The SV-4, or System View 4, is a model used in systems engineering to represent the operational context of a system. It focuses on the relationships between the system and its external entities, such as users, other systems, and environmental factors. This view helps stakeholders understand how the system interacts with its surroundings and the impact of these interactions. In the context of the Department of Defense architecture framework, the SV-4 provides a visual representation of the system's operational scenarios. It includes details about the system's inputs, outputs, and the flow of information, aiding in the analysis and design of complex systems.