1. A method executed in a computer system for matching a computed curve to a target curve representing material behaviors in engineering simulations, the method comprising: receiving a definition of a target curve in a computer system, the target curve being defined by a first set of points; obtaining a computed curve using a computer aided engineering analysis model configured for creating the computed curve via a plurality of control parameters, the computer curve being defined by a second set of points; creating a third set of points on the computed curve using a mapping scheme that maps the computed curve and the target curve into a common normalized coordinate system, each of the third set of points is associated with a corresponding one of the first set of points in the mapping scheme; iteratively updating the computed curve by adjusting the control parameters until a discrepancy between the computed and target curves is within a tolerance, the discrepancy is calculated using the third set and the first set of points; and storing the control parameters along with the computer aided engineering analysis model into a file on a storage device coupled to the computer system upon user's instructions.