CC BY 4.0Schwahn, MarieMarieSchwahnBlock, LukasLukasBlockPotinecke, ThomasThomasPotineckeWerner, Maximilian JakobMaximilian JakobWerner2025-08-202025-08-212025-08-202025https://publica.fraunhofer.de/handle/publica/49085010.1007/978-3-658-45889-8_2110.24406/publica-5125Circularity measures like repair, remanufacture and refurbish provide options to enhance the life cycle and thus the sustainability of a product besides measures, which primarily concentrate on the end-of-life of a product. To integrate the concept of circular value creation engendered by such measures in the development process of a product, we extended the idea of modelling standard life cycles as introduced by Block et al. This extension introduces the novel notion of undesired states within a product’s life cycle. Undesired states can be dissolved with the help of circularity measures. A Model Based Systems Engineering (MBSE) approach was developed to implement this strategy. The resultant modelling approach is implemented in form of a software tool. The system is evaluated within an automotive development project revealing a significant advantage in contrast to previous methods.enCircularityProduct developmentLife cycle engineeringMeta modelModel-based systems engineeringModelling Usage-Specific Circularity Measures for Individual Life Cycle Paths in Life Cycle EngineeringModelling Usage-Specific Circularity Measueres for Individual Life Cycle Paths in Life Cycle Engineeringconference paper