By employing object-oriented design to implement abstractions of the key components required for iterative systems analyses, the DAKOTA toolkit provides a flexible and extensible problem-solving environment for design and performance analysis of computational models on high performance computers. These capabilities may be used on their own or as components within advanced strategies such as surrogate-based optimization, mixed integer nonlinear programming, or optimization under uncertainty. DAKOTA contains algorithms for optimization with gradient and nongradient-based methods uncertainty quantification with sampling, analytic reliability, and stochastic finite element methods parameter estimation with nonlinear least squares methods and sensitivity analysis with design of experiments and parameter study methods. The DAKOTA (Design Analysis Kit for Optimization and Terascale Applications) toolkit provides a flexible and extensible interface between simulation codes and iterative analysis methods.
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