13519541
WS-SLA: A Framework for Web Services Oriented Service Level Agreements
Service level agreements (SLA) becomes the prevailing business model for delivery of a large number of products and services in telecommunication and IT arenas. We presents an integrated service level agreement model applied to operating supporting system (OSS), on the basis of WfMC workflow reference model and service oriented architecture (SOA). And an application scenario instance of SLA system architecture is described by a set of operations models by Business Process Execution Language (BPEL)
1036059
Neighbor Relationship and Optimization in Mesh Overlay Multicast
Nodes in mesh overlay multicast system don't have fixed parent-children relationship like that in trees and form neighbors. But in data-driven mesh and based on pulling method, for each packet, it still follows a certain tree and the parent-children relationship does exist. While having the powerful peers stay closer to the source may improve the performance, we make the peers of high out bandwidth preempt the neighbor of the peers near the source. In our paper, we describe the delivery trees set and construct the main distribution tree, which carries most of the data, to construct the signaling path and relay priority preemption message to reduce the cost. We model the neighbor relationship to decide which neighbor to be preempted based on the capacity of the node and the contribution it makes to the probed nodes. Our simulations show that after a temporary reduction in performance at the beginning, which for the optimization chaos of optimization procedure, the system converges to a stable state and gains better performance, especially for playback delay, and meanwhile the control overhead is in reasonable range.
22450367
Networking Business Model In Regional Medical Service- Case of Chikamori Medical Group in Kochi, Japan
Japan's Health Care System has experienced a number of changes over the last half a century. And the most heated aspect of current health policy debate focuses on the potential radical reform of the medical care system. In addition, the regional medical service organizations are in front of a more severe challenge because of the rapidly aging population and decreasing young population. Consequently, hospitals and other NHS organizations in local areas have been required to introduce reforms in their management structure for their survival This paper reports in depth on a case study of a private Japanese hospital, the Chikamori medical group, to introduce a key competence-based management model and differentiation marketing strategy. As one of the regional medical care support hospitals, Chikamori plays an active and important role in the regional medical care network. The case implies the effective business model based on positioning in the network architecture, which is significant not only for medical service field but also for other regional industries. The mutual correlations among financial strategy, human resource design, managing policy and collaboration manner with regional doctors are discussed in the paper.
127814276
Smarandache notions
2283116
A Practical OpenMP Compiler for System on Chips
With the advent of modern System-on-Chip (SOC) design, the integration of multiple-processors into one die has become the trend. By far there are no standard programming paradigms for SOCs or heterogeneous chip multiprocessors. Users are required to write complex assembly language and/or C programs for SOCs. Developing a standard programming model for this new parallel architecture is necessary. In this paper, we propose a practical OpenMP compiler for SOCs, especially targeting 3SoC. We also present our solutions to extend OpenMP directives to incorporate advanced architectural features of SOCs. Preliminary performance evaluation shows scalable speedup using different types of processors and effectiveness of performance improvement through optimization.
31126370
Transform BPEL Workflow into Hierarchical CP-Nets to Make Tool Support for Verification
Availability of a wide variety of Web services over the Internet offers opportunities of providing new value added services by composing existing ones. Service composition poses a number of challenges. A composite service can be very complex in structure, containing many temporal and data-flow dependencies between the component services. It is highly desirable therefore to be able to validate that a given composite service is well formed: proving that it will not deadlock or livelock and that it respects the sequencing constraints of the constituent services. In this paper, we propose an approach of composition analysis and verification based on Colored Petri nets (CP-nets), which is an extended version of Petri Nets, which have a sound mathematical semantics and a number of existing analysis tools. We provide translation rules of web composition language into CP-nets and a technique to analyze and verify effectively the net to investigate several behavioral properties. Our translation technique is essentially independent of which language we describe composition. As an example, to show the effectiveness of our technique, we pick up BPEL and translate the BPEL specification into CP-nets in a constructive way. These nets are analyzed and verified as prototypes of the specification.
42610771
A Novel Ordering-Based Greedy Bayesian Network Learning Algorithm on Limited Data