A distributed model of coordination with dynamic management and support for mobile applications

In Ubiquitous Computing the systems must provide mechanisms to promote the cooperation among users through interoperability of their applications. With this motivation, this paper presents the EXEHDA-TS, which is a distributed mechanism for coordination of applications in Ubiquitous Computing. The proposed software architecture has proactive behavior and allows a dynamic control of communication costs, promoting scalability. The EXEHDA-TS was modeled as an integrated service to the EXEHDA middleware. The prototype was evaluated through case studies in the medical field, considering the challenges inherent in the PERTMED design, satisfactorily fulfilling the requirements of the focused scenarios.