In a project network diagram, what do nodes typically represent?

In a project network diagram, nodes typically represent tasks. Each node marks a specific point in the project timeline where a particular activity or task occurs. The primary purpose of these nodes is to outline the sequential flow of tasks within the project, illustrating how different activities are interconnected and the order in which they need to be completed.

This visualization helps project managers in identifying dependencies among tasks, making it easier to plan the overall project schedule effectively. Understanding the sequence and relationships between tasks is crucial for efficient project management, as it allows for better resource allocation and risk assessment.

While the other options might relate to project management in other contexts—such as resources, which refer to the assets needed for completing tasks; delays, which indicate interruptions in the workflow; and milestones, which represent specific points of achievement in a project timeline—they do not convey the main function of nodes in a project network diagram. Nodes strictly symbolize the tasks that are critical to understanding the workflow of a project.