バッファ (buffer) in the business setting is having more flexibility in a schedule or workload.
Buffer is originally an IT term that refers to temporarily storing data on a computer. In the business scene, it is used to ask whether a schedule or task is possible.
Spare parts are also called buffers. The English translation of “buffer” is “extra capacity.”
例：この仕事は失敗してやり直しになる可能性があるので、計画にバッファを入れたほうがいいですよ。
