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PERT · AON DIAGRAM

Activity on Node Diagram Examples & Generator

Managing complex project workflows? An activity on node (AON) diagram makes task dependencies crystal clear. Whether you're planning a launch event, coordinating a construction schedule, or mapping a software sprint, these AON diagram examples show how to structure your work for maximum clarity.

4 EXAMPLES· UPDATED 2026-06-17
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PROJECT MANAGEMENT

Construction Project AON Diagram

PROJECT MANAGEMENT

Event Planning AON Diagram

PROJECT MANAGEMENT

Manufacturing Process AON Diagram

SOFTWARE ENGINEERING

Software Sprint AON Diagram

ABOUT

About these examples.

Browse our hand-picked gallery of activity on node diagram examples covering event planning, construction, manufacturing, and agile development. Each example is fully editable — click to inspect the diagram, then tweak it to match your own project.

Perfect for project managers, event coordinators, and agile teams needing to visualize task sequences and identify the critical path. Ready to build your own? Jump straight into the free AON diagram maker below.

HOW TO

Make one yourself.

  1. 1

    Choose a Starting Point

    Select from our AON diagram templates or open a blank editor to build from scratch.

  2. 2

    Define Your Activities

    Each node represents a task; label it with the task name and duration if known.

  3. 3

    Link Dependencies

    Draw arrows from predecessor to successor tasks to map the project workflow.

  4. 4

    Customize Your Diagram

    Use the drag-and-drop interface to rearrange nodes and apply colors for clarity.

  5. 5

    Save and Share

    Export your AON diagram as an image, PDF, or share a live link with your team.

FAQ

Frequently asked questions

What is an activity on node diagram?01
An activity on node (AON) diagram is a project management tool that uses nodes to represent activities and arrows to show dependencies, helping you visualize the critical path and task order.
How is an AON diagram different from an AOA diagram?02
In AON, activities are on nodes with arrows indicating dependencies. In activity-on-arrow (AOA), activities are on arrows and nodes represent milestones.
Can I calculate the critical path with this tool?03
Our online maker allows you to manually define durations and dependencies; for automatic critical path calculations, consider dedicated project management software.
Is this free to use?04
Yes, ChatDiagram's AON diagram maker is free with no sign-up required.
What formats can I export?05
You can export your AON diagram as an image (PNG), vector (SVG), PDF, or share a live link.
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Open the AI editor and describe what you need — export PNG/SVG when you're done.

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