check visibl object featur text vi pars except model facad attribut featur attribut notat uml anu attribut notat uml anu pars attribut text featur text gave wrong visibl model facad visibl featur text gave wrong visibl model facad model facad visibl featur vi equal model facad model facad visibl featur model facad oper featur oper notat uml onu oper notat uml featur onu pars oper text featur text gave wrong visibl model facad visibl featur text gave wrong visibl model facad model facad visibl featur vi equal model facad model facad visibl featur fail check visibl featur 