Völkel, MaxHinkelmann, KnutWache, Holger2019-06-032019-06-032009978-3-88579-239-0https://dl.gi.de/handle/20.500.12116/23284In this paper we motivate how personal knowledge models can make knowledge workers more productive. The external representation can help him to tackle typical cognitive limits. They do so by allowing a knowledge worker to efficiently and effectively model her or his personal knowledge in a mix of informal and formal knowledge. As a result, more knowledge can be re-used cheaper and hopefully more complex problems can be tackled.enText/Conference Paper1617-5468