A Model Alternative is a single model configuration with a specific set of inputs and parameters. A second model alternative is defined by a different configuration, inputs, or parameters.

A Forecast Run is a single forecast scenario defined by a specific set of input data, information, and model alternatives. A second forecast run would be defined by different data, information, or model alternatives. Model alternatives run sequentially during a forecast. For more information on forecast runs, see CWMS Forecasts.

Model alternatives are described in this section. The model alternatives are configured from the Setup Module.