摘要
提出了一种基于本体的ETL设计方法,通过建立各数据源的局部本体和目标数据仓库的全局本体以及本体间的映射,得出以OWL表示的各数据源和目标的映射关系。用本体元数据指导数据抽取、转换和加载过程,解决数据源ETL过程中的语义异构问题,实现了企业数据语义程度的集成。
An ontology-based approach of ETL is discussed in data warehouse. After building the local ontologies of data sources and the global ontology of destine data warehouse, and the mappings of the ontologies, the mapping relations between ontologies with the expression of OWL are gained. Then start the process of data extract, data transform, data loading start under the guide of ontologybased metadata, the semantic heterogeneity in the process of ETL is eliminated, and the problem of data intergration in semantic degree of enterprise is solved.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第7期1517-1519,1571,共4页
Computer Engineering and Design
基金
江苏大学基金项目(1283000122)。
