The present document contains the result of studies relating to the analysis of the user requirements, the new technologies contribution for smart identity, and a digital clone definition. The present document examines: (1) The user profiles in digital ecosystem including sociological and psychological context, non-functional requirements, digital maturity, usage evolution facing digital transformation of society and new interactions between user/provider for service delivery. (2) The definition and Smart ID Model based on the information model described in the ETSI TR 103 604 [i.4]. (3) The user digital clone and his knowledge base needs (ACIFO Model - Informational model). (4) The different profiles for the most exhaustive description possible whatever the use case and associated definitions. (5) Artificial intelligence algorithms for data processing and enrichment. (6) New technologies for smart identity (AI, Data storage and security, Data localization).