COSMOS – the CO-creation Service MOdelling System (COSMOS) – a web-based extension of the Living Lab platform - was developed in direct response to the issues experienced by pilots and partners when using the authoring component of the Living Lab platform. Recognizing that the barrier-to-entry for the pilots was high, an approach was devised to enable models to be populated and configured on the basis of responses to a questionnaire. Upon completion of each question, the model is built based on the real-time entry of the End User. The outcome of this process is a model of each pilot which is a specific instance of the canonical model mapped onto local developments identifying the relative emphasize of development or delivery platform, the range and type of actors and organizations positioned at structural and infrastructural levels, integration and support actors and relevant external factors. The analytic models developed in WP6 as part of the Wave A phase are then applied to the local model to stimulate reflection, sense-making, and deliberation. A User Guide for COSMOS can be found here whilst a video overview of the platform can be found on Youtube here. COSMOS was developed by the Newcastle Living Lab team at Northumbria University as part of the Co-creation of Service Innovation in Europe (COSiE) project. More information regarding COSiE can be found on the project website (https://cosie.turkuamk.fi/cosie/) and on Twitter by searching #H2020 and #CoSIE2020. The originating Living Lab project, also developed by the Newcastle Living Lab team at Northumbria University, is available via Zenodo (https://doi.org/10.5281/zenodo.3383969) and GitHub (https://github.com/newcastle-living-lab/living-lab/). The Newcastle Living Lab team can be contacted via email on info@livinglab.org.uk and found on Twitter @NclLivingLab.