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�������պ����ѧѧ�� 2005, Vol. 31 Issue (10) :1125-1129    DOI:
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Migration from object-oriented legacy system to component-based system
Liu Dongyi, Li Hu, Jin Maozhong, Liu Chao*
School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� In order to reduce costs, increase productivity, researchers and practitioners make massive research on software reuse. To create reusable assets and reengineer legacy systems, identifying, extracting and reengineering software component that implement abstractions within systems is one of the most cost-effective ways. A reengineering methodology is proposed for migrating from an object-oriented legacy system to a component-based system. This methodology is divided into three parts. Part one extracts component based on component contract. Part two reconstructs cross-cutting component in terms of some rules, which conform to component reusability, lower coupling between components and higher cohesion within a component. Part three refactors component according to component contract. This methodology has successfully been applied to restructure a legacy system.
Keywords�� object-oriented   legacy system   component   contract   migration     
Received 2004-11-08;
Fund:

����"863"�߼����о���չ�ƻ�����������Ŀ(2001AA113100)

About author: ����ܲ(1972-),Ů,����������,��ʿ��,ldy@sei.buaa.edu.cn.
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����ܲ, �, ��ï��, ����.����ϵͳ�ٹ����н��湹�����ַ���[J]  �������պ����ѧѧ��, 2005,V31(10): 1125-1129
Liu Dongyi, Li Hu, Jin Maozhong, Liu Chao.Migration from object-oriented legacy system to component-based system[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2005,V31(10): 1125-1129
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