MBfX: Proposing Semantics for systematically applying System Modelling Techniques across different Applications and Domains

System modelling techniques have become increasingly popular in recent years. While many of the approaches to using system models originated in systems engineering, hence Model-Based Systems Engineering, they are now being applied to various applications and domains, even outside the field of systems engineering. However, the term MBSE is still widely used; thus, a diverse understanding has evolved. This work proposes semantics to clearly describe research and approaches when systematically applying these system modelling techniques across different applications and domains of product or service design, to support transparency and comprehensibility.