ServiceFlow: QoS-based hybrid service-oriented grid workflow system

被引：6

作者：

Cao, Haijun ^{[1
]}

Jin, Hai ^{[1
]}

Wu, Xiaoxin ^{[2
]}

Wu, Song ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Serv Comp Technol & Syst Lab, Cluster & Grid Comp Lab, Sch Comp Sci & Technol, Wuhan 430074, Peoples R China

[2] Intel China Res Ctr, Commun Technol Lab, Beijing 100080, Peoples R China

来源：

JOURNAL OF SUPERCOMPUTING | 2010年 / 53卷 / 03期

关键词：

Grid workflow; Virtual service; Multi-QoS metrics; Synthesized QoS evaluation; Service selection; Dynamic binding;

D O I：

10.1007/s11227-009-0300-y

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Based on OGSA, grid workflow may construct new value-added services by composing existing elementary services with sophisticated workflow logic. Due to the highly heterogeneous and dynamic features of grid, Quality of Service (QoS) becomes essential and poses great challenges to grid workflow. This paper presents a QoS-based hybrid service-oriented grid workflow system called ServiceFlow, which enables the construction of QoS-aware workflow at both abstract and concrete service levels. To gather and delegate multiple concrete physical services providing equivalent functionality but diverse QoS capabilities, virtual service is proposed to participate in service composition. In addition, two phases of service selection, namely pre-matching phase and QoS-based service selection phase, are designed for dynamic service bindings at runtime. Performance evaluation results indicate that ServiceFlow can improve different QoS metrics to fulfill the user's requirements.

引用

页码：371 / 393

页数：23

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