SoA and end user needs review

Summary
Del 1.1 aims to present the review of the state-of-the-art and conduct the necessary research for identifying gaps and needs in order to inform the selection of tools and models in PHOEBE. This research and review process will be done as part of activity T1.1 via two sources: publicly available databases (such as Scopus, Web of Science, and Google Scholar) and interviews and surveys with stakeholders involved in use case demonstrations. To promote Open Science practice (i.e. making scientific research and its dissemination accessible to all levels of society, amateur or professional) and given that the interviews and surveys with stakeholders will be anonymised. Therefore, this report will be public.