While the models recognition criteria described in this chapter are primarily intended for comprehensive Value-at-Risk (VaR) models, nevertheless, the same set of criteria will be applied, to the extent that it is appropriate, to other pre-processing or valuation models the output of which is fed into the standardised measurement system, e.g., interest rate sensitivity models (from which the residual positions are fed into the duration ladders) and option pricing models (for the calculation of the delta, gamma and vega sensitivities).