Owing to the dynamic characteristics of mobile environments, a mobile application needs to adapt to changing contexts to improve performance and resource utilization. We have developed an adaptive middleware infrastructure that simultaneously satisfies the individual needs of applications while maintaining overall system performance. A Model Reference Adaptive Control mechanism has been impleme...

The cycle from one release of a software product to the next is becoming shorter and shorter. Especially for custom software products (nonstandard software), implementation productivity needs to be increased. The reuse of prefabricated software components and the implementation of reusable and extensible software are of great importance. The object-oriented programming paradigm has already prov...

Object-oriented frameworks are a promising new technology to improve software quality and reduce development costs. In contemporary software development frameworks play an increasingly important role. Subject of our paper is an object-oriented ready-to-use framework for robot control systems. benefits are the fast software development, the better quality of software and the reduction of costs. ...

We show how to use aspect-oriented programming to separate security and trust issues from the logical design of mobile, distributed systems. The main challenge is how to enforce various types of security policies, in particular predictive access control policies policies based on the future behavior of a program. A novel feature of our approach is that advice is able to analyze the future use o...

The performance of multitasking control systems with resource constraints depends not only on controller design, but also on efficient scheduling of the shared computing resources. To support codesign of feedback control and real-time scheduling under overload conditions, a direct feedback scheduling approach is proposed. The goal is to optimize the overall system performance through dynamicall...

In this paper, we explore the mechanisms by which conversants control the direction of a dialogue. We find further evidence that control in task-oriented dialogues is subordinate to discourse structure. The initiator of a discourse segment has control; the non-initiator can contribute to the purpose of the segment, but this does not result in that person taking over control. The proposal has im...

The start of the electrical energy market has encouraged distributors to make new investments at distribution level so as to attain higher quality levels. The service continuity is one of the aspects of greater importance in the definition of the quality of the electrical energy. For this reason, the research in the field of fault diagnostic for distribution systems is spreading ever more. This...

In a SOA context, enterprises can use workflow technologies to orchestrate available business processes and their corresponding services and apply business rules or policies to control how they can be used and who can use them. This approach becomes a bit more complex when a set of business processes includes services that derive outside the company's domain and therefore can be difficult to al...

The Internet provides a universal platform for largescale distribution of information and supports inter-organizational services, system integration, and collaboration. Use of multimedia documents for dissemination and sharing of massive amounts of information is becoming a common practice for Internet-based applications and enterprises. With the rapid proliferation of multimedia data managemen...

We are studying some fundamental properties of the interface between control and data planes in Information-Centric Networks.We try to evaluate the traffic between these two planes based on allowing a minimum level of acceptable distortion in the network state representation in the control plane. We apply our framework to content distribution, and see how we can compute the overhead of maintain...