Which of the following illustrates both logical and physical flows?

A System Interface Diagram provides a representation of both the logical and physical flows within a system. The logical flow depicts how data moves through the system and how various components interact at an abstract level. This aspect focuses on the relationships and functionalities of various system parts without delving into actual physical implementations.

In contrast, the physical flow includes tangible elements like the specific paths that data takes as it travels through the system, possibly indicating the network, server locations, or specific hardware involved. By illustrating both these aspects, a System Interface Diagram offers a comprehensive view of how a system operates in practice, facilitating a deeper understanding for stakeholders concerned with both design and implementation.

On the other hand, while flowcharts and data flow diagrams show processes and data movements, they typically do not combine physical elements with logical representations as effectively as a System Interface Diagram does. Activity models also tend to focus more on the process and workflows without integrating the physical architecture as prominently. Thus, the correct answer highlights a dual perspective on system interactions that is vital for understanding complex information systems.