Considering Model-Based Systems Engineering (MBSE) principles and needs, this article focuses on the design of Domain Specific Modeling Languages (DSMLs) aiming to link modeling, verification and validation (V&V) activities. The goal is to ease the work and increase the freedom and autonomy of experts from various domains in the process of creating and managing system models then to supply experts involved in analyses and decision making processes with models characterized by highest level of confidence. This paper introduces and illustrates a tool-equipped approach, named “xviCore”, that provides MBSE experts with natively verifiable, executable and interoperable DSML named “xviDSML”, i.e., DSML that can be formally and directly checked and simulated requesting no huge efforts or skills.