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The Research And Application Of Data Quality In Data Warehouse Environment For Telecom Industry

Posted on:2007-12-01Degree:MasterType:Thesis
Country:ChinaCandidate:Z FangFull Text:PDF
GTID:2178360215470443Subject:Software engineering
Abstract/Summary:PDF Full Text Request
With the development and application of data warehouse, data quality has become a more and more important problem in data warehouse field. Better data quality directly results in better application of data warehouse and success of data warehouse project.As the foundation of data quality, data quality assessment and data quality check have gradually become an important research field in data warehouse technologies, more and more research papers about data quality in data warehouse appeared in many kinds of conferences and journals. Aimed at the main challenges in this fields, this thesis explored and researched some key technologies of data quality assessment and data quality check in data warehouse. The main research content and results of this thesis are as follows:1). Based on the feature of data warehouse, we proposed a data quality assessment model based on roles, described the constructing technology and computing method of the model.2). Analyzed the main data quality check method, proposed data quality check application framework with composed data quality check method, realized the data quality check process in different data warehouse stage such as data collection, data transformation, data storage and data application. Based on data feature of telecom industry, proposed a outlier data check method based on cluster analysis3). Based on the characteristic of telecom industry, design and implement an expansible data quality check and data quality assessment system seamlessly integrated with data warehouse system.
Keywords/Search Tags:Data Warehouse, Data Quality, Data Quality Check, Data Quality Assessment Model
PDF Full Text Request
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