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�������պ����ѧѧ�� 2005, Vol. 31 Issue (06) :700-704    DOI:
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Ԭ��1, ����ƽ1, ����1, ��2*
1. �������պ����ѧ �����ѧԺ, ���� 100083;
2. ŵ�����й��з�����, ���� 100013
QoS management model based on policy for grid application service
Yuan Man1, Hu Jianping1, He Rui1, Ma Jian2*
1. School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. Nokia R&D China, Beijing 100013, ChinaChina

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ժҪ R.Al-Ali�����һ����������ķ�������(QoS)������ģ��,��ģ�ͽ�����QoS���⻮��ΪӦ�ò�QoS�������м��QoS�Լ������QoS,���ص��Ӧ�ò��QoS��ʾ���Ż�������������о�.Ŀǰ��������QoS����Ĵ�����о������ڶ�Ӧ�ò��������WSDL�ĵ���ʵ�ַ���ȼ�Э��(SLA)�ı�ʾ��������.������ν�Ӧ�ò�����Ҫ��QoS�����紫����QoS����ģ�ͽ���������ʺ������������о������൱��,Ϊ�������һ�ֻ��ڲ��Ե�����QoS����ģ��,��ģ�ͼ��ܹ�������������Ӧ�÷���ʹ�ò�ͬ��QoS���������ӳ����,Ҳ�ܹ��������ڿ�Խ��ͬ��֯�����ò�ͬQoS����ģ�ʹ�����ӳ����.����֯��QoS����ģ�Ͳ��ò��ģ��(DiffServ)ʱ,���������ģ�ͽ����˳�������,�������������Խ���һ����ģ�ͼ��ɵ��������������ϵ(OGSA)��ʵ�ֶ�����Ӧ�÷����QoS����.
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�ؼ����� ����   �������������ϵ(OGSA)   ��������(QoS)   ����     
Abstract�� A quality of service(QoS) management model for grid is proposed by R.Al-Ali, the issues for grid QoS are divided into QoS of application layer, QoS of grid middleware and QoS of network layer. Research focus on expression for application layer service level agreement(SLA) by extending WSDL and optimization issues etc.. The research is a little for regarding application quality of service and network layer service of quality as whole. Therefor, a kind of QoS management model for grid based on policy is proposed. The motive is to shield differences for mapping application services’ QoS into transport services’ QoS from all kinds of QoS mechanism model employed by all organizations or different QoS level employed by application services for grid. When organization employs differentiated services(DiffServ), the QoS management model for grid is simulated, primarily. The simulated results show this QoS policy management model for grid can be integrated into OGSA to implement QoS management for grid application service.
Keywords�� grid   open grid service architecture   quality of service   policy     
Received 2004-09-17;

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About author: Ԭ ��(1965-),��,������������,��ʿ��,yuanman@263.net.
Ԭ��, ����ƽ, ����, ��.���ڲ��Ե�����Ӧ�÷���QoS����ģ��[J]  �������պ����ѧѧ��, 2005,V31(06): 700-704
Yuan Man, Hu Jianping, He Rui, Ma Jian.QoS management model based on policy for grid application service[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2005,V31(06): 700-704
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2005/V31/I06/700
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