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This paper presents a quality-of-service (QoS) based RFID system for smart assembly workshop towards the industrial Internet of Things (IoT). Under the context of the industrial IoT, every object in the assembly workshop is interconnected, which enables automated monitor of the production environment, track of the components/products/tools, and control of the machines and the execution process. The...
The service delivery model of cloud computing acts as a key enabler for big data analytics applications enhancing productivity, efficiency and reducing costs. The ever increasing flood of data generated from smart phones and sensors such as RFID readers, traffic cams etc require innovative provisioning and QoS monitoring approaches to continuously support big data analytics. To provide essential information...
One of the obvious challenges in cloud environments is trust crisis and its influence on the development of cloud computing. This paper analyzes the similarities and differences between cloud computing and other distributed environments, proposes the concept of trust and three different directions of trust-oriented research in cloud environments. According to three directions of trust-oriented research,...
In this paper, an approach to e-Health service adaptation, based on input data analysis is presented. The developed approach can be applied to various services, not only e-Health, however, the motivating scenario presents interesting aspects of the problem and a challenge for efficient service adaptation. The adaptation is presented here as an extension of service composition approach, allowing for...
More and more Internet services are hosted by Content Distribution Networks or Cloud operators. Often, IP addresses are reused for several services, and the mapping between domain names and IPs has become highly agile. This complicates the analysis of monitoring data, as it is not clear anymore which IP address represents which service at which time. We propose a system that continuously monitors...
Providers of composite Web services face the challenge of having to comply to SLAs, which are agreements governing the minimum performance that customers can expect from a composite service. In this work, a framework for optimizing adaptations of service compositions with regards to SLA violations has been developed. The framework, dubbed PREvent (Prediction and Prevention of SLA Violations Based...
Service Oriented Architecture (SOA) has become the prominent distributed computing paradigm nowadays. One of the technologies that enable the running of SOA is web services. In its nature of similar to peer-to-peer communication, web services involve customer who requests for the service and provider who provides the service. As a result, web services implementation requires a contract agreement so...
Since the 21st century, modern service industry has mushroomed around the world, and the application systems in modern service industry are usually built based on the reuse of other third party services in a distributed and loose-coupled way. Consequently, there will be a greater need for the provisioning and lifecycle management of services. In this paper, we analyze the drawbacks of current service...
The deployment of services requires a significant investment from service providers, in order to maximize their Return On Investment. To create and launch new services offerings rapidly and successfully, they must deploy their services in the adequate hosting environment. We propose in this paper "a Deployment of Service Elements based on QoS" to meet the Service Level Agreement (SLA) from...
This paper proposes an appropriate incentive scheme design for service delivery systems to ensure service deliverability. We use proactive continuous performance monitoring to provide qualitative observations and data on how well services are being provided and whether desired service outcomes are being achieved as a result of interaction between two parties (service provider and service requester)...
The paper proposes a novel schema — MARDO for dynamic composite web services resources QoS optimizing using cooperative agents. The paper first introduces the QoS model of web service resources and its mathematical definitions. Then provides MARDO to monitor and optimize the runtime status of composite web services. It parses the structure and the QoS requirement of the composite service workflow...
As the global IPTV market is growing fast, assurance of IPTV service quality becomes one of the key factors to the success of IPTV business. To deal with the IPTV service assurance issue, one of the practical approaches that the service provider can apply is to employ the state-of-the-art development technologies (e.g., NGOSS frameworks) to construct an IPTV management platform, in which a number...
The great challenges of Internet service fault management are uncertainty and noise. To address these challenges, we model the service scenario through a multi-layer management model, and propose an approach using active probing to detect and diagnose faults. This approach uses bipartite Bayesian network as dependency model, binary symmetric channel as noise model, and is composed of two phases: fault...
Reduction of operational efforts and complexity are key drivers for RAN Long Term Evolution. It is also of interest to minimise operational effort by introducing self-configuring and self-optimising mechanisms. A self-optimising function shall increase network performance and quality reacting to dynamic processes in the network. To improve the efficiency and performance of the E-UTRAN system, an efficiency...
With the development of SOA (service-oriented architecture) and SOC (service-oriented computing), the quality of service (QoS) was more and more important than before. How to access, store and measure the QoS in complex network has been a key work for the SOA. An expanded service model supporting QoS is proposed in this paper, and the model supports service publishing, selection based on QoS. In the...
Distributed software systems are characterized by increasing autonomy. They often have the capability to sense the environment and react to it, discover the presence of other systems and take advantage of their services, adapt and re-configure themselves in accordance with the internal as well as the global state. Testing this kind of systems is challenging, and systematic and automated approaches...
This paper describes a benchmarking workload model for business process execution language (BPEL) engines for Web services. The proposed model is based on simulation of real world traffic conditions by defining a set of requirements which best characterize the end-users. The performance characteristics are evaluated on top of collected measurements such as success/fail rate, response times or round-trip...
Using Web services and service-oriented architectures to implement cross-organizational workflows has become state-of-the-art for the realization of collaborations between enterprises. Here, a key issue is the monitoring of workflows and services based on given business requirements and the handling of deviations from those requirements to fulfil service level agreements. In this paper we present...
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