PhD, Eng. Angelo Martella is a junior researcher at the DataLab of the Department of Engineering for Innovation of the University of Salento. He is currently an academic teacher in Big Data Management and Data Science and Engineering at the same department. The research topics in which he is involved include study about Digital Twins and Data Space, especially in terms of analysis and comparison between the corresponding development solutions currently available on the market. In this regard, crucial factors for trusted and secure data sharing/exchanging are data interoperability, data sovereignty and formats, protocols and policies for an efficient and effective data sharing/exchanging management. Consequently, his areas of expertise encompass all stages of the design, development, and implementation of digital twins for smart cities, with an emphasis on adopting data spaces as essential facilitators of the resulting data ecosystem by managing data flows in distributed edge-cloud environments. Currently, he is involved in various research projects, even if the large part of his work is essentially concentrated in the spoke number 9 related to “Digital Society and Smart Cities” within the “High Performance Computing, Big Data e Quantum Computing” national project by Italian “Centro Nazionale di Ricerca”.