Service-centric systems exist in a very dynamic environment. This requires these systems to adapt at runtime in order to keep fulfilling its QoS. In order to create self-adaptive service systems, developers not only design the service architecture, but also need to design the self-adaptability aspects in a structured way. A key aspect in creating these self-adaptive service systems is modeling ...

During the SARS-CoV-2 pandemic, self-service restaurant sector, as well other types of food services, are facing an unprecedented crisis needing to adapt their service avoid closing doors. With varied and quick meals, buffet is one most important outside services. However, type where clients follow a line on serve meals has impaired traditional operation during pandemic and, perhaps, after it. ...

As Web services become widespread, many complex applications require service composition to cope with high scalability and heterogeneity. Centralized Web service composition approaches are not sufficient as they always limit the scalability and stability of the systems. How to efficiently compose and adapt Web services under decentralized environments has become a critical issue, and important ...