4.4.1 Behavioral Data Types

   The Behavioral package provides the following enumerated type.

   In the metamodel ParameterDirectionKind defines an enumeration that denotes if a Parameter is used for supplying an argument and/or for returning a value. The enumeration values are:

   pdk_in: An input Parameter (may not be modified).

   pdk_out: An output Parameter (may be modified to communicate information to the caller).pdk_inout: An input Parameter that may be modified.pdk_return: A return value of a call.The default value is pdk_in.