Selk, BernhardKloeckner, SebastianBazijanec, BettinaAblani, AntoniaTurowski, KlausZaha, Johannes Maria2019-08-272019-08-2720053-88579-399-7https://dl.gi.de/handle/20.500.12116/24950The deployment of business components in large enterprise information systems offers great potential. Nonetheless the process of finding and defining the right business components is very challenging. While the definition of business components is comparatively simple for small business domains, it becomes very complex for larger domains of interest. This paper illustrates the experiences made during the modeling process of an integrated information system architecture for Customer Relation Management (CRM) and Supply Chain Management (SCM) with more than 500 functions and 1000 information objects under usage of the Business Component Identification (BCI)-Method. Based on this experience possible enhancements and needed extensions for the BCI-Method are proposed and explained.enText/Conference Paper1617-5468