MODELING PROBLEM

Jerry M. Mendel, Lessons in Digital Estimation Theory, Prentice-Hall, 1987

"After a model has been completely specified, through choice of an appropriate mathematical representation, measurement of measurable signals, estimation of nonmeasurable signals, and estimation of its parameters, the model must be checked out. The validation problem deals with demonstrating confidence in the model. Often, statistical tests involving confidence limits are used to validate a model."