The Observer Pattern Research Based on rCOS

Author:

Xiang Yan1,Yang Jing1,Zhu Hao1,Dong Ding Xiang1

Affiliation:

1. Guizhou University

Abstract

Design patterns is a good method to solve software crisis and realize the software reuse. It is usually combined with the Unified Modeling Language (UML) to establish the system framework. And Observer pattern is high frequently used in actual modeling. So this paper presents formalization of the Observer pattern based on refinement Calculus of Object Systems (rCOS), this research describes formal semantics of the patterns UML class diagram and sequence diagram and guarantee the characteristics and properties of the pattern at the same time in order to use system model accurately which involved Observer pattern.

Publisher

Trans Tech Publications, Ltd.

Reference11 articles.

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2. Leilei, D.,: JAVA design patterns for detection of research and tool development. Huazhong University of Science and Technology Master's degree thesis (May 2004).

3. Hoare, C.A.R., Jifeng,H.: Unifying Theories of Programming [M]. Prentice-Hall, (1998).

4. J, He., Z, liu., X, Li.: Towards a refinement calculus for object-oriented system (invited talk ). Proc. ICCI02. Alberta. Canada. IEEE computer Society. (2002).

5. J, He., X, Li., Z, Liu.: rCOS: A refinement calculus of object systems. Theoretical Computer Science, Vol. 365(2). (2006)109−142.

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