Dear AERAS partners, As discussed in our last WP2&4 meeting, we ask all the partners to give their input for Deliverable 2.3. AERAS Initial Reference Architecture. Each partner needs to add information regarding their assigned components: - Description, - Diagrams, - Technologies used, - Input and Output of components, - Interaction with other components, - Other useful info Next to each component, we have added the corresponding partner highlighted in green [PARTNER]. *On the 5th of June, we have our next meeting, so it would be great if we could see a first draft version of the Deliverable to discuss.* *We kindly ask our partners from STS-CY and AEGIS*, since our implementation will be based on their existing tools, to add their input as soon as possible. This will help the other partners with their input. All the partners are welcome to contribute to the deliverable by adding any suggestions for the structure, content, etc., directly to the document. *Link to the deliverable on Sharepoint:* https://unimi2013.sharepoint.com/:w:/r/sites/AERAS/_layouts/15/Doc.aspx?sourcedoc=%7B52B614BB-37E5-4B56-9076-221A868492EF%7D&file=AERAS_D2.3.docx&action=default&mobileredirect=true Best, Pantelitsa Leonidou CUT