What does a flow diagram primarily represent?

A flow diagram primarily represents a visual overview of a process, highlighting the sequence of steps and the decision points within that process. It serves as a powerful tool for illustrating how users interact with a system or service, making it easier for designers and stakeholders to understand workflows, identify potential bottlenecks, and communicate complex processes clearly. By laying out each step in a visual format, flow diagrams enable effective analysis and improvement of user experiences and system functionality.

The other options, while related to design and UX, do not accurately describe the purpose of a flow diagram. Detailed descriptions of user requirements focus more on specifications and expectations rather than process visualization. A list of design principles and guidelines provides criteria for creating effective designs but does not represent the flow of actions or decisions. Lastly, a comparison of different design methodologies examines various approaches to design but does not visualize a specific process in the manner that flow diagrams do.