D3.3 Digital Twin platform implementation, services and usability

This deliverable explains principles of the Digital Twin platform implementation, its services and how usability has been considered. First, it is clarified how the implementation of digital twin platform has been performed. Then, the services developed under WP3 are introduced and explained, concluding in a list of SPHERE Services from partners explaining also briefly how their integration to the SPHERE ecosystem is carried out. Finally, we explain how qualities of usability have been addressed as inter-project practice, following three-level process including heuristic evaluation, trial testing and actual testing.