since the 1980s, research teams at the university of innsbruck and bauhaus-universität weimar had been developing algorithms for optimization and reliability analysis in conjunction with finite element simulations. as a result, the software "structural language (slang)" was created. in 2000, cae engineers first applied it to conducted optimization and robustness analysis in the automotive industry. in 2001, the dynardo gmbh was founded in 2003. based on slang, the software optislang was launched as an industrial solution for cae-based sensitivity analysis, optimization, robustness evaluation and reliability analysis. in 2013, the current version optislang 4 was completely restructured with a new graphical user interface and extended interfaces to external cae processes.