When you create a resource from a data object, the wizard creates a default resource mapping that includes a Read transformation and an Output transformation. The Read transformation reads the data object that you created the resource from. The Output transformation contains the same columns as the Read transformation in a default resource mapping.

The following image shows a default resource mapping that returns all the columns from a Customers data object:

The resource mapping does not contain a Filter transformation or a Lookup transformation to filter the data. However, a REST web service client can send a request with filter parameters to a web service that has a default resource mapping. The Data Integration Service filters the data from the output data that the resource mapping generates.