Final answer:
Critical chain scheduling includes buffers to protect the project completion date. Buffers are time reserves placed in the schedule to absorb uncertainties and prevent delays. This method ensures on-time project delivery by accounting for variability and resource constraints.
Step-by-step explanation:
Critical chain scheduling is a method used in project management that takes into account the limitations of resources when creating a project schedule. The main answer to the student's question is that critical chain scheduling includes buffers to protect the project completion date. Buffers are added to the project schedule as time reserves to absorb the variability of task durations and to guard against any potential delays, thereby ensuring on-time project completion.In critical chain scheduling, these buffers are strategically placed at the end of the project (project buffer), as well as at the end of sequences of activities that are not on the critical chain (feeding buffers), to protect against uncertainties. The reserves and multitasking mentioned in the options of the question are not specifically used to protect the project completion date in critical chain scheduling, and outsourcing is a separate tactic altogether, not a time buffer component.In conclusion, critical chain scheduling emphasizes the importance of accounting for variability and resource constraints by integrating buffers into the project timeline to help ensure successful and timely project delivery.