MDT-UML2Tools How To Use UML Profiles
UML Profiles provide a generic extension mechanism for building UML models in particular domains. They are based on additional Stereotypes and Tagged values that are applied to Elements, Attributes, Methods, Links, Link Ends and more. A profile is a collection of such extensions that together describe some particular modeling problem and facilitate modeling constructs in that domain.
Here is the workflow of creating and using UML profile: