Communications of the ACM
Communications of the ACM
A product perspective on total data quality management
Communications of the ACM
The impact of poor data quality on the typical enterprise
Communications of the ACM
Enhancing data quality in data warehouse environments
Communications of the ACM
Data Quality for the Information Age
Data Quality for the Information Age
A Framework for Analysis of Data Quality Research
IEEE Transactions on Knowledge and Data Engineering
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Data warehouses are characterized in general by heterogeneous data sources providing information with different levels of quality. In such environments many data quality approaches address the importance of defining the term "data quality" by a set of dimensions and providing according metrics. The benefit is the additional quality information during the analytical processing of the data. In this paper we present a data quality model for data warehouse environments, which is an adaptation of Markowitz's portfolio theory. This allows the introduction of a new kind of analytical processing using "uncertainty" about data quality as a steering factor in the analysis. We further enhance the model by integrating prognosis data within a conventional data warehouse to provide risk management for new predictions.