The Golden Nominal customer master data record is the converged and unified customer master data record. Golden nominal records are a key concept within Customer Master Data Management (CMDM) and are defined as the single source of truth.
This single record represents a data point that captures all the necessary information your organization needs to know about a customer.
When combining customer records from disparate sources, you will often find duplication of customer master records. These records may not all be exactly the same, they may have incomplete data attributes, spelling mistakes or partial information. Over time some records may also diverge in terms of precision and content yet there may be a common linkage that informs you that two different records are referring to the same person.
If you are able to identify these different records and their relationship then blending their attributes to a new or a selected record, makes that target record the golden nominal.