§Use terminology that is
adapted to a particular platform or domain
§
§Specify a syntax for
constructs that do not have a notation
§
§Specify a different
notation for symbols that already exist
§
§Add semantics that are
left unspecified in UML
§
§Add semantics that do
not exist in UML
§
§Add constraints that
restrict the way one may use UML
§
§Add information that can
be used when transforming a model to another model or code