Glossary

• NotLiteral = Texts with this style are not literal texts, they are used as variables to express general rules, often expressed as regular expressions.
• M3, M2, M1 = Shorthands for Meta-metamodel, Metamodel, Model.
• (meta)model = M2 or M1;
• ModelPiece = Model, Operation, Attribute, Value… Anything contained in a (meta)model or the (meta)model itself.
• M2-.+ = A ModelPiece of type .+ contained in M2.
• M1-.+ = Instance (object or value) of a M2-.+, contained in M1.