Power (2006) argues that Microsoft Excel 2002 help defines "What-If analysis" as a
process of changing the values in cells to see how those changes affect the outcome of
formulas on the worksheet. Winston (2004) identifies four tools in Excel that are
commonly categorised as "What-If?" or sensitivity analysis tools. These tools are such
as Data Tables, Goal Seek, Scenarios, and Solver. The simplest type of "What-If?"
analysis is manually changing a value in a cell that is used in a formula to see the result. Excel experts seem to use the terms sensitivity and "What-If?" analysis interchangeably.