In recent years it has been shown that the secure exchange of medical information significantly benefits people’s life quality, improving their care and treatment. The interoperability of the entire healthcare ecosystem is a constant challenge, and even more, with all the risks posed to the security of healthcare information. Blockchain technology is emerging as one of the main alternatives when it comes to finding a balance in the healthcare ecosystem. However, the constant development of new Blockchain technologies and the evolution of healthcare systems make it difficult to find established proposals. From an architectural point of view, the design of blockchain-based solutions requires trade-offs e.g. security and interoperability. This paper focuses on two main objectives, in the first one, it was carried out a Systematic Literature Review for exploring architectural mechanisms used to support the interoperability and security of Blockchain-based Health Management Systems. Taking into account of results, a series of scenarios were generated where these mechanisms can be used along with their context, issues, and various architectural concerns (interoperability and security). In the second objective, a high-level architecture and its validation were proposed through an experiment for the whole process of developing a Domain Specific Language, using the Model Driven Engineering methodology for specific Smart Contracts.

Smart University is an emerging concept, strongly anchored to smart technologies and considered by different authors in the literature. Organizations, including universities, need to incorporate smart technologies to take advantage of their capabilities to transform their processes and drive them toward new organizational models. A Smart University focuses on improving its technological infrastructure for achieving its quality educational goals. This paper presents the integration of the key factors for adopting four smart technologies: Cloud Computing, Big Data, Artificial Intelligence, and the Internet of Things. This characterization and integration allow us to conclude on the need to align digital technologies with the organization's processes, requiring greater interaction with the company’s senior management.

Currently, computer security is one of the most important tasks for supporting critical business process and protecting sensitive information. However, security problems for computer systems include vulnerabilities because they are hard to use and have poor user interfaces due to security constraints. Nowadays, finding a good trade-off between security and usability is a challenge, mainly for user authentication services. In this paper is presented a set of 153 heuristics as a tool to evaluate the grade of achievement in some applications according to security, usability and other characteristics for user authentication (e.g. performance, accessibility, operability and reliability). The main contribution of this work is to propose a possible standardization of these heuristics by formulating them in interrogative sentences to facilitate the evaluation of usable security and user authentication. Each heuristic is accompanied by comments that facilitate their evaluation.