When you create a Data Processor transformation with JSON input or output, you select a JSON schema or sample file for the transformation. The schema or sample file defines the expected structure of the input or output data hierarchy.
When you use the Data Processor transformation wizard to create a transformation with JSON input or output, the transformation can contain a Parser, Mapper, Transformer, or a Serializer associated with the JSON hierarchy. The JSON schema is converted into an .xsd file that defines the hierarchical structure of the JSON file. You can use this .xsd schema with any JSON document that has the same hierarchical format.