Many claim that software systems must be designed for security. This, however, is far from being an easy task, especially for complex systems. We believe that this difficulty can be alleviated by a set of —preferably rigorous— principles. We propose an architectural style, the Dual Protection Style (DPS), for constructing secure software. This style results from our experience in designing and ...

In this paper, we model the end-to-end QoS provisioning mechanisms in the WLAN and 3GPP interworking network. For the end-to-end QoS guaranteed service, we model the control plane and user plane considering the WLAN and 3GPP interworking network. And we propose the QoS parameter/class mapping and DPS packet scheduler. By the simulation results, DPS can provide the low end-to-end delay of voice ...

With the proliferation of electronically available information, an additional burden has been placed on the implementors of information gathering (IG) systems. The set of data that represents the best response to a query may be the aggregation of data acquired from distributed, heterogeneous information sources. In such environments, we distinguish between two approaches to the problem of infor...

In this paper, distributed parameter process systems behavior is studied in frequency domain. Based on the dominant gain concept that is developed for such studies, a method is presented to control distributed parameter process systems. By using dominant gain concept, the location of open loop zeros, resulted from the time delay parameter in the process model, were changed from the right half p...

With the proliferation of electronically available information an additional burden has been placed on the implementors of information gathering IG systems The set of data that represents the best response to a query may be the aggregation of data acquired from distributed heterogeneous information sources In such environments we distinguish be tween two approaches to the problem of information...

With the proliferation of electronically available information, an additional burden has been placed on the implementors of information gathering (IG) systems. The set of data that represents the best response to a query may be the aggregation of data acquired from distributed, heterogeneous information sources. In such environments, we distinguish between two approaches to the problem of infor...