Activity Network Diagram (AND)

activity network diagram

• displays tasks, the order, and the time each takes
• aka arrow diagram, node diagram, network diagram
• used during Define and Improve DMAIC stages

critical path

longest path, in time, from start to end of path

any delay of critical path tasks delays overall project delivery

creation steps

1. identify tasks involved
2. sequence the tasks
3. network the diagram
   : add arrows showing path flow