Although traditional physics or statistical models could assess the feasibility and effectiveness of a COA, model builders must balance speed or runtime and fidelity; a highfidelity model that runs in minutes is not helpful to a decision made in seconds. Although traditional physics or statistical models could assess the feasibility and effectiveness of a COA, model builders must balance speed or runtime and fidelity; a highfidelity model that runs in minutes is not helpful to a decision made in seconds