The project network provides other invaluable information and insights.It provides the basis for scheduling labor and equipment. It enhances communication that melds all managers and groups together in meeting the time, cost,and performance objectives of the project. It provides an estimate of project duration rather than picking a project completion date from a hat or someone’spreferred date. The network gives the times when activities can start and finish and when they can be delayed. It provides the basis for budgeting the cash flow of the project. It identifies which activities are “critical” and, therefore,should not be delayed if the project is to be completed as planned