9. The machine-readable media of claim 7 , wherein the operations further comprise writing references to the second profile and the third profile into the definition of the stereotype of the first profile.
7. One or more non-transitory machine-readable media having stored therein a program product, which when executed a set of one or more processor units causes the set of one or more processors units to performs operations that comprise: 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.