Extended list of requirements

Summary
The deliverable is linked to a specific event (M2.2) and an eventual report. The goal of the event is to join both User Communities representatives and developers in order to ensure that the initial list of functionalities have been taken into account. Additionally, and based on the evolving user experience and the findings of task T2.2 (reflected in D2.2), an extended list of functionalities is provided to be taken into account in future releases and developments.