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Node

The point on a schedule network diagram where relationship lines join, usually depicting an activity or milestone.

Key Points

  • Shows where dependencies attach to an activity or milestone.
  • Used in precedence diagramming; relationships (FS, SS, FF, SF) connect at nodes.
  • Often displays details such as activity ID, name, duration, and dates.
  • Serves as the building block of the schedule network used for critical path analysis.

Example

In a website project, "Develop Backend" and "Test API" are nodes. A finish-to-start dependency line runs from "Develop Backend" and connects at the "Test API" node, indicating testing cannot start until development finishes.

PMP Example Question

In a precedence diagram, what does a node primarily represent?

  1. The connection point where dependencies link to an activity or milestone
  2. The total float available on the critical path
  3. A resource calendar constraint
  4. A detailed risk response plan

Correct Answer: A - The connection point where dependencies link to an activity or milestone

Explanation: A node is the point on the network diagram where dependency lines connect and typically represents an activity or milestone.

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ICS/OT Cybersecurity Fundamentals course preview

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