Critical Path Method

In the above network diagram there are three possible paths

1) Start → A→C→E→End→5+3+2=10 Days

2) Start → B→D→E→End→4+6+2=12 Days

3) Start → B→D→F→End→4+6+6=16 Days

Out of three paths 3) is the longest as it takes 16 to deliver all three activities.

This is the critical path

This above process is called as critical path.

Crashing - Adding more resources to any activity on critical path activities.

Fast Tracking : Re - sequencing activities in the network diagram to gain time benefits.