This presentation was delivered by Johannes Biermann and Anna Eggers from PERICLES project partner State and University Library Göttingen at the final project conference 'Acting on Change: New Approaches and Future Practices in LTDP' (Wellcome Collection Conference Centre, London, 30 Nov -1 Dec 2016). Day 2 - Session 6: 'Capturing the ecosystem of shared infrastructures: How to model the use case of the Dutch network of shared facilities?' Beginning with presentations from the Netherlands Coalition for Digital Preservation on a new programme to construct a network of national facilities for preservation, the workshop will explore the value of modelling such complex, large-scale preservation environments, focusing on dependencies between, and policies common to, participating organisations, and how PERICLES ideas can help in managing risk across the network. http://pericles-project.eu/