Data keys allow for the storing of information from a source. These keys act as destinations that may be leveraged by either a single source (when configured as a private key) or from multiple sources.
For example, the data key "Estimated Giving Capacity" may be supplied by multiple sources. By contrast, a score or rating from a specific wealth screening provider should only ever apply to that particular source (such as a DonorSearch rating or iWave score).
By leveraging shared keys where the underlying data is ultimately the same, users can look across multiple sources when querying and reporting in order to evaluate the information in the aggregate. Or, users may choose to specify a particular key from a particular source.