CC BY-NC-ND 4.0Wiesner, MalinaMalinaWiesnerMügge, JanineJanineMüggeSteiner, JoannaJoannaSteinerKlumski, JonasJonasKlumskiRiedelsheimer, TheresaTheresaRiedelsheimerLindow, KaiKaiLindow2025-09-222025-09-222025https://publica.fraunhofer.de/handle/publica/496109https://doi.org/10.24406/publica-550210.1016/j.procir.2025.08.08010.24406/publica-55022-s2.0-105015303495Sustainability remains a critical global challenge in global industries, particularly in aviation, where complex supply chains and strict regulations complicate the integration of the promising approach of circular economy. This study addresses these challenges by analysing the needs for sustainable product design and lifecycles of aircraft, components, and materials, focusing on digital continuity and uniform standards. This paper presents the results of 27 qualitative expert interviews, developed roles to capture diverse perspectives and key requirements for product lifecycle management and leveraging data ecosystems. This sets the basis for implementing data ecosystems and tools like digital product passports (DPPs) to embed circular economy into lifecycle management across complex aviation products.entrueAviationCircular EconomyDigital Product PassportMaterial InformationProduct Informationjournal article