Critical path method (CPM):

• It visualizes critical and non-critical paths and calculates project duration.

• It is dsplayed as network diagram with linked boxes.

• CPM doesn’t show resources required

• CPM plots activities on network diagram without timescale.

Gantt chart:

• It visualizes how project activities are progressing.

• Gantt chart is displayed as horizontal bar chart.

• It shows resources required for each activity.

• It plots activities on a timescale.