Information Quality Measurement in Data Integration Schemas
作者： Ana Carolina Salgado , Maria da Conceição Moraes Batista
DOI:
关键词: Information quality 、 Schema (psychology) 、 Data quality 、 Information retrieval 、 Data integration 、 Data integrity 、 Database 、 Computer science 、 IDEF1X 、 Data warehouse 、 Schema design
摘要: Integrated access to distributed data is an important problem faced in many scientific and commercial applications. A integration system provides a unified view for users submit queries over multiple autonomous sources. The are processed global schema that offers integrated of the Much work has been done on query processing choosing plans under cost criteria. However, not so much known about incorporating Information Quality analysis into systems, particularly schema. In this we present approach schemas environments. We discuss evaluation quality focusing minimality, consistency completeness aspects define some transformations be applied order improve design consequently execution.
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