In complex projects, what type of buffer protects the critical chain process from variations due to noncritical tasks?

The correct answer is that a feeding buffer is designed to protect the critical chain process from variations caused by noncritical tasks in complex projects. In the context of project management, particularly within the Theory of Constraints (TOC) framework, a feeding buffer is strategically placed at points where noncritical paths feed into the critical chain.

This buffer serves to absorb delays and uncertainties from those noncritical tasks to ensure that their impact does not cascade down to the critical chain. Essentially, it safeguards the project’s timeline by providing an additional cushion, thereby preserving the integrity and flow of the critical tasks that directly affect project completion.

Using a feeding buffer effectively allows project managers to maintain a focus on critical activities without getting derailed by variations that can occur in the noncritical areas, thus enhancing overall project efficiency and effectiveness.