ARTEMIS: an open coordination middleware system

This demo displays the use of the prototypical ARTEMIS middleware system, which is developed at Nanjing University to support the construction, execution and evolution of applications in the open, dynamic and decentralized network environment of the Internet. To adapt to such a new environment, software application systems must be more flexible, more reactive, and more evolvable than before [1]. Built upon services from autonomous external sources, these application systems also have to explicitly consider the trustworthiness of the services. With these considerations, this version of ARTEMIS middleware is featured by its support for (1) multiple coordination modes based on various software architecture styles; (2) dynamic software architecture-based online reconfigurations, in reaction to the runtime changes in the environment and requirements; (3) trustworthiness evaluation at both the service level and the system level, which helps users to ensure and improve user's satisfaction on the system constructed.