import /formalisms/SimpleClassDiagrams as SCD

SCD SimpleClassDiagrams{
    SimpleAttribute Natural {}
    SimpleAttribute String {}
    SimpleAttribute Boolean {}

    Class Element {}
    Class Class{
        lower_cardinality? : Natural
        upper_cardinality? : Natural
    }

    Association Association (Element, Element){
        source_lower_cardinality? : Natural
        source_upper_cardinality? : Natural
        target_lower_cardinality? : Natural
        target_upper_cardinality? : Natural
    }

    Association Attribute (Element, AttributeValue) {
        optional : Boolean
        name : String
    }

    Class AttributeValue {}
    Association Inheritance (Element, Element){}
    Inheritance assoc_inh_class (Association, Class) {}
    Inheritance class_inh_element (Class, Element) {}
    Inheritance attributevalue_inh_element (AttributeValue, Element) {}
}