Mapping publishing and mapping adaptation in the middleware of railway information grid system

	Mapping publishing and mapping adaptation in the middleware of railway information grid system
	You, GM; Liao, HM; Sun, YZ
	2004
发表期刊	NETWORK AND PARALLEL COMPUTING, PROCEEDINGS
ISSN	0302-9743
卷号	3222 页码:110-117
摘要	When adopting the mediator architecture to integrate distributed, autonomous, relational model based database sources, mappings from the source schema to the global schema may become inconsistent when the relational source schema or the global schema evolves. Without mapping adaptation, users may access no data or wrong data. In the paper, we propose a novel approach the global attribute as view with constraints (GAAVC) to publish mappings, which is adaptive for the schema evolution. Also published mappings satisfy both source schema constraints and global schema constraints, which enable users to get valid data. We also put forward the GAAVC based mapping publishing algorithm and mapping adaptation algorithms. When we compare our approach with others in functionality, it outperforms. Finally the mapping adaptation tool GMPMA is introduced, which has been implemented in the middleware of railway information grid system.
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems ; Computer Science, Theory & Methods
WOS记录号	WOS:000224583100013
出版者	SPRINGER-VERLAG BERLIN
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/13950
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	You, GM
作者单位	Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	You, GM,Liao, HM,Sun, YZ. Mapping publishing and mapping adaptation in the middleware of railway information grid system[J]. NETWORK AND PARALLEL COMPUTING, PROCEEDINGS,2004,3222:110-117.
APA	You, GM,Liao, HM,&Sun, YZ.(2004).Mapping publishing and mapping adaptation in the middleware of railway information grid system.NETWORK AND PARALLEL COMPUTING, PROCEEDINGS,3222,110-117.
MLA	You, GM,et al."Mapping publishing and mapping adaptation in the middleware of railway information grid system".NETWORK AND PARALLEL COMPUTING, PROCEEDINGS 3222(2004):110-117.