Arena allows only three target groups to be selected for title characteristics: adult, youth, children. This is far beyond the requests of RDA (Rule 184.108.40.206) and library practice, where a much broader vocabulary is in use, e.g. in MARC 385. Arena has to be opened to this vocabulary, standardized and multilingual. RDA is now used for quite some years in libraries and Axiell should start to integrate RDA-tasks in Arena.