Wach, PaulZeigler, Bernard P.Salado, Alejandro2021-06-102021-06-102021-05-27Wach, P.; Zeigler, B.P.; Salado, A. Conjoining Wymore’s Systems Theoretic Framework and the DEVS Modeling Formalism: Toward Scientific Foundations for MBSE. Appl. Sci. 2021, 11, 4936.http://hdl.handle.net/10919/103762The objective of this research article is to re-introduce some of the concepts provided by A. Wayne Wymore in his mathematical theory of Model-Based Systems Engineering, discuss why his framework might have not been adopted, and define a potential path to modernize the framework for practical application in the digital age. The dense mathematical theory has never been converted to a practical form. We propose a path to modernization by creating a metamodel of Wymore’s mathematical theory of MBSE. This enables explaining the concepts in simple to understand terms and shows the internal consistency provided by the theory. Furthermore, the metamodel allows for conversion of the theory into software application, for which we show some initial results that open the research to the art of the possible. In recognition of limitation of the theory, we make the case for a merger of the theoretical framework with the enhanced formalism of Discrete Event System Specification (DEVS). This will establish a path toward the scientific foundations for MBSE to enable future implementations of the complementary pairing and their empirical results.application/pdfenCreative Commons Attribution 4.0 Internationalmodel-based systems engineeringMBSEmodeling & simulationmodel and simulation-based systems engineeringdigital engineeringdigital transformationDEVSArticle - Refereed2021-06-10https://doi.org/10.3390/app11114936