Model Verification and Validation

Abstract

Model Verification and Validation (V&V) is concerned with having a model and the model’s results “correct” for a specific model use or purpose. This chapter presents an overview of V&V of computerized structural models. Formally, model verification of computerized structured models is defined as “ensuring that the computer program of the computerized model with its solution method and the computer program’s implementation are correct” and model validation is defined as the “substantiation that a computerized model within its domain of applicability possesses a satisfactory range of accuracy consistent with the intended application of the model.” Model V&V is part of the model development process. The overview of V&V presented includes the decision-making approaches for deciding model V&V, a graphical paradigm for relating V&V to the model development process, a discussion of each of the steps of performing V&V during the model development process, the criticalness of documenting V&V, and a recommended model V&V procedure.