A buffer is additional time to complete a task
Murphy’s Law states that if something can go wrong, it will
Parkinson’s Law states that work expands to fill the time allowed
In traditional estimates, people often add a buffer to each task and use it if it’s needed or not
Critical chain scheduling removes buffers from individual tasks and instead creates:
A project buffer or additional time added before the project’s due date
Feeding buffers or additional time added before tasks on the critical path