Which of the following decision support tools is used to determine capacity requirements on the basis of future demand?

Decision trees are a graphical representation of decisions and their possible consequences, including chance event outcomes. While they help in decision-making by outlining options and potential risks, they do not specifically address capacity requirements based on future demand, making them unsuitable for this purpose.

Capacity cushions refer to the extra capacity that an organization maintains to handle unexpected demand or variability in supply. While they are related to capacity management, capacity cushions are not a forecasting tool; instead, they are a strategy implemented after demand is forecasted to ensure service levels during demand fluctuations.

Break-even analysis is a financial calculation to determine the point at which total revenues equal total costs, indicating no profit or loss. This tool focuses primarily on financial viability rather than predicting future demand or determining capacity requirements, thus making it irrelevant in the context of capacity planning based on demand forecasts.