4. The computer system of claim 3 , wherein upon the user selecting one of the predefined data types, the modeling tool provides that the user can select between predefined properties associated with the selected predefined data type.
4. The computer system of claim 3 , wherein upon the user selecting one of the predefined data types, the modeling tool provides that the user can select between predefined properties associated with the selected predefined data type. 6. The computer system of claim 4 , wherein upon the user selecting one of the predefined properties, the modeling tool provides that the user can select between predefined qualifiers associated with the selected predefined property.