The collaboration tools offered by Cloud Computing have increased the need to share data and services within companies or between autonomous organizations. This has led to the deployment of community cloud infrastruct...The collaboration tools offered by Cloud Computing have increased the need to share data and services within companies or between autonomous organizations. This has led to the deployment of community cloud infrastructures. However, several challenges will arise from this grouping of heterogeneous organizations. One of the main challenges is the management of trust between the actors of the community. Trust issues arise from the uncertainty about the quality of the resources and entities involved. The quality of a resource can be examined from a security or functional perspective. Therefore, ensuring security and monitoring the quality of resources is to ensure a high level of trust. Therefore, we propose in this paper a technique for dynamic trust management and quality monitoring of resources shared between organizations. Our approach consists, on the one hand, in evaluating the quality of resources based on quality of service measurement attributes and, on the other hand, in updating the trust values according to the information deduced from these measurements. The proposed framework is evaluated in terms of resource sharing success rate and execution time. Experimental results and comparison with TNA-SL and InterTrust models show that the framework can identify and track the behavior of malicious organizations with relatively low execution time.展开更多
文摘The collaboration tools offered by Cloud Computing have increased the need to share data and services within companies or between autonomous organizations. This has led to the deployment of community cloud infrastructures. However, several challenges will arise from this grouping of heterogeneous organizations. One of the main challenges is the management of trust between the actors of the community. Trust issues arise from the uncertainty about the quality of the resources and entities involved. The quality of a resource can be examined from a security or functional perspective. Therefore, ensuring security and monitoring the quality of resources is to ensure a high level of trust. Therefore, we propose in this paper a technique for dynamic trust management and quality monitoring of resources shared between organizations. Our approach consists, on the one hand, in evaluating the quality of resources based on quality of service measurement attributes and, on the other hand, in updating the trust values according to the information deduced from these measurements. The proposed framework is evaluated in terms of resource sharing success rate and execution time. Experimental results and comparison with TNA-SL and InterTrust models show that the framework can identify and track the behavior of malicious organizations with relatively low execution time.
文摘目的描述国内外期刊护理安全管理评价指标构建类研究的理论基础、研究方法及指标条目等,探讨这一主题相关研究文献概貌。方法以“护理安全指标”“患者安全指标”“病人安全指标”“patient safety indicator”为关键词,检索中国知网、万方、维普、中国生物医学文献数据库、Pubmed、Web of Science、CINAHL等文献数据库,应用Arksey和O’Malley范围综述方法对纳入文献进行描述性分析。结果共纳入文献75篇,98.67%(74/75)的研究中构建的指标主要针对保障患者安全,仅有2篇提到构建指标体系用于保障护士的安全;86.7%(65/75)的文献探讨的是医院环境中护理安全管理评价指标的构建,5.3%(4/75)针对老年护理院,关注家庭病床的研究仅占2.67%(2/75)。结论在护理安全越来越受关注的今天,应用更科学的研究方法,关注在更广泛的医疗护理服务场所中的护理安全问题,保障所有医疗护理服务实践参与者的安全。
