This deliverable reviews the current standard landscape for cloud computing, security, and data format relevant for CLARUS. The objective of this document is to define the standardisation roadmap built on a throughout analysis of the standards and their potential adoption in the design and implementation of the CLARUS proxy solution. By considering relevant standards in the early stage of the project will ease the integration of standardised solutions and follow an interoperability by design approach. This document first recaps the cloud computing ecosystem and the objective of CLARUS to highlight the need for standards. Then, it discusses the CLARUS approach to standards and the
methodology used to identify relevant standards. A special focus on additional requirements stemming from the best practices and recommendations of Standard Developing Organizations (SDOs) is also given. Finally, this deliverable maps the technical requirements identified in Deliverable D2.2 “Requirements specification V1” to the identified standards.