Like designs are abstractions of some actuality, metamodels are abstractions of styles. The continuation with the abstraction leads to meta metamodels, getting models of metamodels containing statements about metamodels. Metamodeling may be the exercise of developing metamodels (and metametamodels). Metamodeling is placed on style new modeling languages and to extend https://www.youtube.com/watch?v=5LF34uf-LC4