*** Special Issue of Future Internet (ISSN 1999-5903) on *** ******* "Service-Oriented Systems and Applications" ****** Submission Deadline: 31 August 2021 Website: <https://www.mdpi.com/journal/futureinternet/special_issues/S_Oriented_Syste ms_A> https://www.mdpi.com/journal/futureinternet/special_issues/S_Oriented_System s_A ***************************************** ************ Call for Papers ************ ***************************************** Modern applications are inherently distributed, as they integrate various heterogeneous components and stand-alone (micro)services. How to compose and orchestrate services, as well as how to integrate and adapt them, has thus become a core issue in such distributed, service-oriented systems and applications. Theoretical and practical approaches to modelling and analysing such systems and applications would simplify their development; enable their validation and evaluation; and enhance their interoperability, reusability, and maintainability. The goal of this Special Issue is to allow researchers and practitioners to discuss common problems and present novel solutions in the aforementioned fields. Topics of interest include, but are not limited to, the following: * Cloud/fog/edge computing, and large-scale distributed systems; * Design principles, architectural smells, and architectural refactoring of service-oriented systems and applications; * Resource and application management in next-gen Cloud-IoT systems; * Dynamic service-oriented architectures and self-* systems and application; * Fault localization and resilience in service-oriented systems and applications; * Formal methods, models, and techniques for service-oriented systems and applications; * Microservices; * Model-driven design and development of peer-to-peer systems and blockchains; * Programming languages for service-oriented systems and applications; * Reverse engineering for service-oriented systems and applications; * Security in service-oriented systems and applications; * Service composition, coordination, orchestration, integration, and adaptation; * Service-Oriented Architecture (SOA); * Support for business processes-from design- to run-time; * QoS monitoring, modelling, and analysis in service-oriented systems and applications; * Verification and testing solutions for service-oriented systems and applications. Guest Editors Dr. Jacopo Soldani, University of Pisa, Italy [http://pages.di.unipi.it/soldani] Dr. Stefano Forti, University of Pisa, Italy [http://pages.di.unipi.it/forti/]