The domain analysis & description calculi introduced in  is shown to alleviate the issue of implicit semantics [1, 2]. The claim is made that domain descriptions, whether informal, or as also here, formal, amount to an explicit semantics for what is otherwise implicit if not described ! I claim that  provides an answer to the claim in both [1, 2] that “The contexts of the systems in these cases are treated as second-class citizens . . .”, respectively “In general, modeling languages are not equipped with resources, concepts or entities handling explicitly domain engineering features and characteristics (domain knowledge) in which the modeled systems evolve”.