When designing complex systems such as Aircraft, harmonizing the way we describe and analyze systems physical architectures is important in order to reduce costs, lead-time, and to increase systems maturity at entry into service. As Modelica has interesting multi-domain modeling capabilities, we define a harmonization approach that is based on the use of Modelica in an Integrated Development Environment.

A Modelica-Based Domain-Specific Framework for Electromechanical System Design was developed. The intended goal of this framework is to be used in early design phases in order to size physical architectures of electromechanical airbrake system. It has been developed using a generic methodology for the development of interoperable and modeldriven system design frameworks. It is based on domain-specific modelling languages for the description of system architectures and relies on ModelicaML, a Modelica UML profile, to support system architecture analyses with the Modelica modelling language. Transitions between architectural description models and Modelica analysis models are realized through analyses-based model transformations.