Service-Oriented Computing exploits services as the fundamental elements of computer-based systems. It has been applied to various areas and promotes fundamental changes to the way software systems are being analyzed, architected, designed, implemented, tested, evaluated, delivered, consumed, maintained and evolved. Consequently, a new paradigm of software and system engineering discipline, i.e. Service-Oriented Engineering, has emerged and advanced rapidly in the past decade. Among many remarkable milestones in the development of this new paradigm are the wide adoption of the Microservices architectural style supported by Docker and other container-based virtualisation techniques in the design of cloud native application in the industry, and the DevOps movement in the organisation of development process supported by automated tools for continuous testing, continuous integration and continuous delivery. Recent advances in service oriented computing, in particular Internet-of-Things, Industry 4.0, Edge and Fog computing, mobile and cloud computing combined with Big Data analytics, robotics, blockchain and decentralised ledger applications, and application of artificial intelligence and deep learning techniques, etc., have provided exciting opportunities to make significant progress in understanding and solving complex real-world challenges. Such challenges typically require a system-level approach that models a complex system at different levels of abstraction, helps to develop sound architectures for addressing separate system requirements and concerns, and integrates diverse sources of knowledge on the system’s components and their interactions. Therefore, the revolution of the software and system engineering paradigm brought by service-orientation is still unfolding, with each new technology development bringing new challenges and opportunities.
Starting from 2005, SOSE is a pioneering IEEE sponsored international conference devoted to the research in engineering service-oriented systems. It covers all aspects of service-oriented engineering from architectures, techniques, tools and languages to methodologies. Continuing the tradition of the last twelve editions of SOSE Symposia, the 15th SOSE intends to provide a forum for researchers and practitioners to exchange latest observations, insights, achievements and visions in Service-Oriented System Engineering. SOSE 2021 invites original submissions in all the areas of the system engineering and software engineering methods, techniques, tools, applications, and experiments for software services.