•Sensitivity analysis is extremely valuable in DSSs.
•It makes the system flexible and adaptable to changing conditions and to the varying requirements of different decision-making situation.
•Sensitivity analysis allows users to enter their own data, including the pessimistic data, or worst-case scenario, and to view how systems will behave under varying circumstances.
•Sensitivity analysis provides better understanding of the model and the problem it purports to describe.
•Sensitivity analysis may increase users’ confidence in the model, especially when the model is not very sensitive to changes.