1. A computerized method which, when executed by one or more processors, cause the one or more processors to perform operations comprising: creating a model, wherein the model comprises one or more associated profiles; reading a stereotype of a first profile, wherein the stereotype defines constraints to be applied to the model associated with the first profile; determining that the stereotype indicates a second profile and a third profile; accessing the second profile and the third profile; and aggregating a plurality of constraints from across the second and the third profiles for use as constraints for the stereotype of the first profile, wherein the profiles and the stereotype comport with semantics of a modeling language and wherein said aggregating comprises writing references to the plurality of constraints into a definition of the stereotype of the first profile.