We do this below. The network diagram we construct is different depending upon whether we are going to use an activity on node or an activity on arc network. Note here however that the network diagram is not strictly necessary as computer input. A computer could easily work from our lists of activities and precedence relationships given above. Trying to spot those errors by staring at long lists is hopeless.
People are much better at interpreting pictures.
With a little practice it is easy to interpret network diagrams and spot errors. As will become apparent below this network diagram represents clearly and concisely the entire project - enabling us to get a pictorial overview of what is to happen, the various activities and their relationship one to another. Now go to activity on node or activity on arc .