A dependency map is a visual representation of the relationships between different components, tasks, or activities in a project or system. It is used to identify dependencies, which are situations in which the completion of one task or activity is dependent on the completion of another. A dependency map is typically a graphical representation that shows the various components, tasks, or activities and how they are connected to one another. It can be used to identify potential risks or bottlenecks in the project, and to develop strategies for managing or mitigating those risks. Dependency maps are often used in project management to help teams understand the relationships between different tasks and to identify any potential issues that may arise during the course of the project.