What is the purpose of an activity node diagram and how can it be used to represent the flow of activities in a process?

An activity node diagram is used to visually represent the sequence of activities in a process. It helps to show the flow of tasks, decisions, and interactions within a system. By using nodes to represent activities and connecting them with arrows to show the order of execution, the diagram provides a clear and organized way to understand the steps involved in a process. This visual representation can help stakeholders identify bottlenecks, optimize workflows, and improve efficiency in a process.