So this is what a critical path is:
Establish a critical path
A big task can be overwhelming and you might not have any idea where to start on it. In cases like these, establish a critical path where the key aspects of the job are ascertained, along with the time that should be taken to complete them, any dependencies between them and their logical end points. Creating a Gantt chart is particularly effective here. One of the underrated aspects of this step is the fact that establishing a critical path will enable the job to be completed more quickly, so it is a skill well worth learning.
Read the full piece for more on critical path analysis and five other tips for the very biggest projects.