Model-based systems engineering (MBSE), according to the International Council on Systems Engineering (INCOSE), is the formalized application of modeling to support system requirements, design, analysis, verification and validation activities beginning in the conceptual design phase and continuing throughout development and later life cycle phases.
[1][3] MBSE technical approaches are commonly applied to a wide range of industries with complex systems, such as aerospace, defense, rail, automotive, manufacturing, etc.
[4][5][6][7] The first known prominent public usage of the term "Model-Based Systems Engineering" is a book by A. Wayne Wymore with the same name.
As of 2014, the scope of MBSE started to cover more Modeling and Simulation topics, in an attempt to bridge the gap between system model specifications and related system software simulations.
As a consequence, the term "modeling and simulation-based systems engineering" has also been increasingly associated along with MBSE.