Data quality is of paramount importance in any Busine ssInte llige nce (BI) proje ct. In fact, the De cision Support S ystem can be the reference decision unless the data is consistent, update d, comple te d and fit for use for the de cision make rs and the decision tasks. O therwise, the non-quality data may lead policy make rs to make bad de cisions, to miss opportunities or e ven commit ve ry se rious business mistakes. Conside ring this issue, we propose to study in this paper the factors that influence the quality of inte llige nce data, or rathe r the factors mode rating the influence of the quality of source data since this last one is inevitable . We conduct an exploratory research in order to gather information from the literature review that helps us to suggest hypothesis of our research model "Factors Influencing Data Quality in a Data Warehouse". The objective of identifying the critical ones throw a confirmatory re search (that we don't e xpose in this pape r) will be to enable stakeholde rs to be tte r use their scare resources while implementing a BI project by focusing on these key areas that are most likely to have a greater impact.

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