Schmidt, PeggyAbramowicz, WitoldMaciaszek, LeszekKowalczyk, RyszardSpeck, Andreas2019-06-032019-06-032009978-3-88579-241-3https://dl.gi.de/handle/20.500.12116/23241This paper investigates the the development and evolution of concepts and the management of transformers, which adds semantics to the concepts. We illustrate how concepts, their variants and transformers can be developed via cooperation.enText/Conference Paper1617-5468