Issues of model quality and the validation of dynamic models
The aim of this chapter is to review some important issues concerning model quality and sources of errors in models, and to present some methods for testing, internal verification and external validation of simulation models. Questions of quality and validation are then considered in more detail through applications. Case studies illustrate external validation and model quality issues in helicopter and ship models. Issues relating to reduced models are considered using applications concerning aircraft and a hydro-turbine generator model.