A network diagram is a schedule to follow during a project. It consists of tasks arranged logically with each one having a start and finish date.
The network diagram presents a wealth of information to help you manage your project. It shows the tasks to complete, when to complete them, and in what sequence.
It also gives you the critical path containing those tasks and tells you which tasks need top priority and must be addressed without delay. You can identify the critical path because it is the longest path through the network diagram. You can calculate it by adding the durations of activities on each path; the path with the largest sum is your critical path.
The advantages of a network diagram are twofold: you can use it ...