As a Blockchain expert and advisor, Dean Rakic accompanies customers in their digital transformation processes. He looks back on many years of experience in architecture for the processing of large amounts of data, especially in the healthcare environment. His professional focus is on project management, lead with respect to the entire project life cycle including project initiation and project handling. Besides, his additional personal strength is in acting as a specialist in business liaison/stakeholder management. Overall previous experience is on top of Strategy and Innovation development during all development phases. More than 25 years of detailed knowledge of IT and software architecture, project monitoring and project controlling with the identification, analysis, measurement, and control of project risks as well as the regular analysis of the impacts makes his personal stamp. Particularly important is his contribution to the promotion of science and the implementation of innovative achievements through lectures, mentoring and counselling in different vertices, ranging from standard industrial to non-governmental and sustainable projects.

A common today’s technological denominator is called Internet of Things - with the basic idea of connecting all devices to each other. It is the natural evolution of the web as it merges information technology with operational technologies. By representing physical objects and process by its virtual copies the IoT ecosystem is limited by a level of fragmentation. Blockchain with its transactional behavior applied over data providers and users help in overcoming this fragmentation. A new technology such as Blockchain is very promising in terms of increasing interoperability, security transfer and exchange of information over semantic interoperability level and thus allows data to be interpreted and used. As the information is distributed over the network(s), Blockchain especially has become as a solution to establish the trust of all the factors in the digital world. Also, all challenges addressing the IoT datafication has an opportunity as a solver tech by using Blockchain encrypted data and its validated replication over the network. The IoT data can be very complex. They are built of various data formats, images and videos, sometimes non-structured up to structured data. Such data records, time stamped and signed by using a private key under the Blockchain can be distributed without losing data integrity through IoT networks. The principle of secure, valid and distributed data is likely to be closer to goal of the interoperability. With Blockchain user interaction model which involves data users, stakeholders, and authorities with technology by injecting trust and

transparency resolves IoT system fragmentation.