What is data matching?
       Data matching is the process that enables you to find records
            representing the same entity in a dataset.
  
      General definition
Data matching enables you to:
        - Find duplicates, potential duplicates and non-duplicates in a data source
 - Analyze data and return weighted probabilities of matching
 - Merge identical or similar entries into a single entry; and
 - Reduce disparity across different data sources.
 
Record linkage
Record linkage consists of identifying records that refer to the same entity in a dataset.
Two types of data record linkage exist:
        - Deterministic record linkage, which is based on identifiers that match; and
 - Probabilistic record linkage, which is based on the probability that identifiers match.