Tasks dependencies

Last updated Jun 5, 2023

A relationship between two project tasks, where the start or completion of one depends on the start or completion of the other.

• Internal dependencies
• External dependencies
• Mandatory dependencies
• Discretionary dependencies

Refer to dependencies within the project that you and your team have control over. The relationship between two tasks within the same project.

Dependencies that you have no control over. External dependencies mean tasks that are reliant on outside factors, like regulatory agencies or other projects.

Tasks that are legally or contractually required.

Tasks could occur on their own, but the team chose to make them reliant on one another.

• Finish to Start (FS)
• Finish to Finish (FF)
• Start to Start (SS)
• Start to Finish (SF)