A Project Network Diagram is a chart that shows the arrangements of tasks within a project. It can also contain other information such as the duration and connection between each tasks. This is an essential part of project management since you will be able to streamline the execution process.
by Praveen Malik, PMP Project management network diagrams are used for schedule preparation and analysis. They use a combination of nodes and arrows to pictorially depict activities and relationships among those activities.
A project schedule diagram serves several purposes. It is mainly used to develop and keep a record of the sequences of activities. This tool is part of the project schedule management and is relied upon by other scheduling techniques such as the critical path method and the schedule network analysis.