We devise a method for maintaining the continuing availability of a vital service in a real-time sharedmemory multi-processor fault-tolerant computer system. The essential characteristics of the service to be provided are given by the following four properties. (1) The service can be correctly provided by any one operational processor acting alone, but an error will result if multiple operation...

failure mode and effects analysis (fmea) is a method based on teamwork to identify potential failures and problems in a system, design, process and service in order to remove them. the important part of this method is determining the risk priorities of failure modes using the risk priority number (rpn). however, this traditional rpn method has several shortcomings. therefore, in this paper we p...

background: we aimed to analyze the effect of nursing strategies on patients with chronic renal failure (crf) undergoing maintenance hemodialysis (mhd) treatment by puncturing on arteriovenous fistula (avf). methods: ninety-two patients with chronic renal failure undergoing maintenance hemodialysis (mhd) between jan 2014 and jan 2015 were included in the study (all undergoing avf, dialysis for ...

As we know Cloud Computing offer many advantages such as scalability, multi-tenancy of resources and cut hardware costs using virtualization technologies like Xen, Hypervisor software . VMware is also a brand name in virtualization technology. But what happens when a catastrophic failure occurred to the whole cloud storage system Until now there is no such provision to secure our private and co...

Researchers have recently investigated the efficacy of different strategies for recovering from service failure. This paper reports two studies that test the effects of a reactive recovery strategy (compensation) and a proactive strategy (establishing prior rapport between service provider and customer). These strategies, plus aspects of the service problem, were manipulated using written scena...

Application-layer overlay networks have been proposed as an alternative method to overcome IP-layer path anomalies and provide users with improved routing services. Running at the application layer, overlay networks usually rely on probing mechanisms for IP-path performance monitoring and failure detection. Their service performance is jointly determined by their topology, parameters of probing...

Recent advances in networks, information and computation grids, and WWW have resulted in the proliferation of physically distributed and autonomously developed software components and services. These developments allow us to rapidly build new value-added applications from existing ones in various domains such as e-Science, e-Business, and e-Government. Towards this end, this dissertation develo...

The Darlington heart failure service model, part of the South Durham Heart Failure Network, was devised to overcome barriers to accurate diagnosis and effective management of heart failure. It involves rapid diagnosis of left ventricular systolic dysfunction (LVSD) and ongoing heart failure management. A weekly one stop diagnostic clinic, run by a general practitioner (GP) specialist and a hear...

Purpose – The purpose of this paper is to explore how the organizational recovery response to other-customer failure influences the affected customer’s level of satisfaction, unfavorable word-of-mouth (WOM), and repurchase intentions toward the firm. Design/methodology/approach – Two experimental studies: 2 (complaint versus no complaint) £ 3 (employee effort (EE): high versus low versus no) £ ...

quality of service (qos) is an important issue in the design and management of web service composition. qos in web services consists of various non-functional factors, such as execution cost, execution time, availability, successful execution rate, and security. in recent years, the number of available web services has proliferated, and then offered the same services increasingly. the same web ...