In project management, a network diagram is a chart that is populated with boxes noting tasks and responsibilities, then arrows that map the schedule and the sequence that the work must be completed. A 3D-Network diagram is a visual representation of a computer or telecommunications network. 3D Network diagram symbols can be found in tools like EdrawMax and can be helped by creating a network diagram that makes up a network and how they interact, including routers, devices, hubs, firewalls, and others. As shown in the diagram, a 3D network diagram contains lots of other details like multiple routers, firewalls, and internet gateways. 3D network diagrams can be either logical or physical, as they are essential for ensuring a complete understanding of how network topology is interconnected and can give an overhead view of what's going on in the network.