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OYSTER provides the functionality for the match rules to compare values between references that are logically stored different attributes. This is known as Cross-Attribute Compare. This functionality is best shown in the below example.
Suppose that two valid references are provided in Table 2:
Ref1 represents the Input Reference and Ref2 is the Candidate Reference.
If the cross-attribute comparison rule is given as:
#!xml <Rule Ident="1"> <Term> Item="FName" CompareTo="LName" MatchResult="Nickname" /> <Term> Item="LName" CompareTo="FName" MatchResult="Exact" /> <Term> Item="LEA" CompareTo="SSN" MatchResult="Exact" /> </Rule>
Based on these rules, the two references would be found to match.
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