What is one tool that visualizes Features representing a workflow?

A story map is a tool that visualizes features representing a workflow. A story map is a two-dimensional arrangement of user stories that shows the relationship between the user activities and the features that support them1. A story map helps the team to understand the user journey, prioritize the features based on value and dependencies, and plan the releases and iterations2.

References:

•Story Mapping - Scaled Agile Framework

•What is User Story Mapping? | Definition and Overview