13. An apparatus comprising: a set of one or more processing units; and a deployment modeling language tool unit operable to, create a model, wherein the model comprises one or more associated profiles; read a stereotype of a first profile, wherein the stereotype defines constraints to be applied to the model associated with the first profile; determine that the stereotype indicates a second profile and a third profile; access the second profile and the third profile; and aggregate 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.
13. An apparatus comprising: a set of one or more processing units; and a deployment modeling language tool unit operable to, create a model, wherein the model comprises one or more associated profiles; read a stereotype of a first profile, wherein the stereotype defines constraints to be applied to the model associated with the first profile; determine that the stereotype indicates a second profile and a third profile; access the second profile and the third profile; and aggregate 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. 16. The method of claim 13 , wherein the deployment modeling language tool unit is further operable to aggregate attributes from across the second profile and the third profile for use as attributes for the stereotype of the first profile.