An AoA network diagram, or Activity on Arrow network diagram, uses circles and arrows. Arrows represent activities, and the circles are nodes representing the start and finish points of these activities. These diagrams are used for CPM (Critical Path Method) and PERT (Program Evaluation and Review Technique), which help to optimize the performance of tasks in a project. By signing up for a free Lucidchart account, you can create an AoA network diagram to help increase the efficiency of any project. Get started with the free AoA network diagram template above and edit it to fit your project needs.