The Trillium for SAP Global Relationship Linker uses the Reference and Windows Linker processes to identify a potential list of duplicates. It uses the window keys created for the input record to retrieve existing records from the SAP database that have the same window key. The next action depends on the type of linking you are invoking:
The Reference Linker process matches the input record against the retrieved records to determine potential duplicates. Reference linking eliminates the need to match the input record against the entire database.
The Windows Linker process compares records with the same window key to determine potential duplicates.
The list of potential duplicates returned can comprise all the retrieved records or a single record, depending on the window key used and the business rules defined for the Global Relationship Linker process. If you define window keys that extract irrelevant records for matching and business rules that are too loose, the list of duplicates returned is large. A large number of duplicates affects the efficiency of the match and system performance. It is important that you create window keys with the right combination of fields and develop business rules that meet your business requirements.