Modeling is a complex and error prone activity which can result in ambiguous models containing omissions and inconsistencies. Many works have addressed the problem of checking models' consistency. However, most of these works express consistency requirements for a specific modeling language. On the contrary, we argue that in some contexts those requirements should be expressed independently from the modeling language of the models to be checked. We identify a set of modeling requirements in the context of embedded systems design that are expressed independently from any modeling language concrete syntax. We propose a dedicated semantic domain to support them and give a formal characterization of those requirements that is modeling language agnostic.