| 摘要 |
A computer-implemented method of prioritizing a predefined set of electronic data sources includes a step of identifying one or more second data sources corresponding to one or more first data sources if it is determined that the first data sources do not have the ability to provide data related to one or more query dimensions of a query statement. The identified one or more second data sources meet the following criteria: (1) one or more source fields of the one or more second data sources are equivalent to the one or more query dimensions not contained in the first data source; and (2) each source dimension field of the one or more second data sources are either: (A) equivalent to a source field of the first source or (B) have values that are capable of being obtained from the query statement. The one or more first data sources are linked with the corresponding one or more second data sources to generate one or more composite data sources. Scores are electronically assigned to each of the composite data sources based on certain criteria, and the composite data sources are electronically and dynamically ranked based on the assigned scores. One or more of the composite data sources electronically identified as having the highest rank are selected as preferred data sources for locating the data value in response to the query statement.
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