Can you explain network diagram?

Network diagram shows logical relationship between project activities. Network diagram helps us in the following ways: -

• It helps us understand which activity is independent of other activity. For instance you can start coding/execution of transactional screens with out master screens being completed. This also gives an other view saying that you can execute both the activities in a parallel fashion.

• Network diagram also gives list of activities which can not be delayed. Like we can delay the master screens of a project, but not the transactional.