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Ontology-based Software Self-adaptation Analyses and Realization

Author: CaiJunYa
Tutor: OuYangLiuBoï¼›LiuJinChao
School: Hunan University
Course: Software Engineering
Keywords: OSGi Software Architecture Adaptive mechanism Noumenon
CLC: TP311.52
Type: Master's thesis
Year: 2010
Downloads: 40
Quote: 0
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Abstract


New application mode with the expansion of the Internet to all corners of society permeation, pervasive computing, grid computing continue to emerge, the challenges facing software more and more: the management and maintenance costs gradually increase the demand for robustness gradually increase storage state and run state differences are becoming evident. In response to these challenges, the adaptive software provides a series of new settlement mechanism, trying to make the software itself during operation, the various changes of the real-time collection system, according to pre-set a good strategy in itself when necessary automatically adjusted to provide users with better services. Currently, research on adaptive software methodologies mainly in three aspects: Agent-based adaptive software research, adaptive software research based on the software architecture and reflective middleware-based adaptive software research. Software architecture since it was proposed to become one of the important areas of research and practice of software engineering, software architecture level implementation of adaptive examine software adaptive range to provide a comprehensive, systematic, easy to understand the model as well as a strong operability of support, and therefore become the hot spot in the study of software adaptive software architecture software-based adaptive mechanism. Based on 3-layer adaptive software architecture based on Cheng and David oriented OSGi dynamic ontology-based software architecture, and mainly from the following three aspects of research: (1) traditional adaptive system mechanisms to defect to the lack of formal semantics described by formal language to describe the mechanism of ontology-based adaptive system works; (2) for the shortcoming of lack of user demand software adaptive stressed, This paper presents a model of user needs, user demand and stressed the important role in the adaptive implementation; (3) to adjust the strategy of a single defect in the current adaptive embodiment, where the main concern is through components and connectors, additions and deletions adaptive formation of coarse-grained This paper presents a modified component-based properties of fine-grained adaptive mechanism; Finally, test through ECPerf application examples to verify the validity of the dynamic architecture of the body, and on this basis of the full text summary, and expounded the direction of improvement.

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