What is the purpose of a flowchart in UX design?

A flowchart in UX design serves the important function of illustrating the steps a user takes to complete a task or navigate through a system. This visual tool maps out the user journey, showing the sequence of actions, decisions, and interactions a user encounters. By laying out these steps clearly, a flowchart helps designers and stakeholders understand user behavior and identify potential pain points or areas for improvement in the experience. It aids in designing more intuitive interfaces by visualizing how users interact with a product, which ultimately enhances user satisfaction and efficiency.

While other options may relate to aspects of a project, they do not capture the specific utility of a flowchart in the context of user experience design. For example, visual representations of a brand's identity focus more on aesthetic elements rather than user interaction processes. Likewise, tracking budget allocation concerns financial management rather than user interactions, and defining team roles pertains to project organization rather than user experience mapping. Thus, the primary purpose of a flowchart in UX design lies in detailing the user journey, making option C the most relevant and essential choice.