DAGs (Directed Acyclic Graphs)

A Directed Acyclic Graph (DAG) is a visual structure made up of points called nodes connected by arrows called edges, where each arrow shows a direction. "Acyclic" means there are no loops—so you can't start at one node and follow the arrows back to it. DAGs are used to model relationships where certain tasks, events, or data depend on others in a specific order. They are common in fields like project planning, data processing, and version control, helping to organize and represent complex sequences or dependencies clearly and efficiently.