What type of diagram provides a graphical representation of operations within an information system?

A system flowchart provides a graphical representation of operations within an information system. This type of diagram is used to visualize the flow of processes or data through a system, illustrating how inputs are transformed into outputs and highlighting the various components involved, such as processes, decision points, and flow of data. The main purpose is to depict how information moves through the system, which helps stakeholders, including programmers and analysts, understand the overall structure and functionality of the system.

In contrast, data flow diagrams focus primarily on the flow of data between processes and stores rather than depicting operational steps in detail. Use case diagrams illustrate interactions between users and the system, emphasizing functional requirements rather than operational processes. Entity-relationship diagrams model the data structure of a system, showcasing entities and their relationships but not operational flows. Each of these has a distinct focus, making the system flowchart the most appropriate choice for visualizing operations.