Using QoS-Contracts to Drive Architecture-Centric Self-adaptation | |
Chauvel, Franck ; Song, Hui ; Chen, Xiang Ping ; Huang, Gang ; Mei, Hong | |
2010 | |
关键词 | ADAPTIVE SYSTEMS SOFTWARE RECONFIGURATION MODEL |
英文摘要 | Self-adaptation is now a promising approach to maximize the satisfaction of requirements under changing environmental conditions. One of the key challenges for such self-adaptive systems is to automatically find a relevant architectural configuration. Existing approaches requires a set of adaptation strategies and the rough estimation of their side-effects. However, due to the lack of validation methods for such strategies and side-effects, existing approaches may lead to erroneous adaptations. Instead of side-effects, our solution leverages quality contracts whose accuracy can be separately established and which can be dynamically composed to get a quality prediction of any possible architectural configurations. To support self-adaptation, we propose a reactive planning algorithm which exploits quality contracts to dynamically discover unforeseen architectural configurations. We illustrate our approach using a running HTTP server adapting its architecture with respect to the number and the similarity of incoming requests.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000281989000007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods; EI; CPCI-S(ISTP); 1 |
语种 | 英语 |
DOI标识 | 10.1007/978-3-642-13821-8_9 |
内容类型 | 其他 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/293056] |
专题 | 信息科学技术学院 |
推荐引用方式 GB/T 7714 | Chauvel, Franck,Song, Hui,Chen, Xiang Ping,et al. Using QoS-Contracts to Drive Architecture-Centric Self-adaptation. 2010-01-01. |
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