Developer Transformation Guide

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Create the Mapping

Create a mapping that looks for duplicate data in multiple fields.

The mapping performs the following tasks:

It reads a data source.

It adds a group key value and sequence identifier value to the source records.

It analyzes the field data in the records.

It writes the results to a data target.

The following image shows the mapping in the Developer tool:

The mapping that you create contains the following objects:

Object Name	Description
Read_Match_Customers	Data source. Contains the account holder details, including names, addresses, and account numbers.
Key_Generator	Key Generator transformation. Adds group key values and sequence identifier values to the source data.
Match	Match transformation. Analyzes the levels of duplication in the account data.
Write_match_target	Data target. Contains the results of the field analysis.