Data Subset Extraction Guide

Outlines the concepts and procedures used by the Data Subset Extraction module. Data Subset Extraction uses selection criteria specified by the user to create a new test environment from an existing environment.

Data Subset Extraction can be used to:

Data Subset Extraction processing comprises the following elements:

To process an environment using Data Subset Extraction for the Data Express for z/OS solution, all the files belonging to the environment undergo the following steps:

  1. Loading and analysis of the application copybooks.
  2. Loading and analysis of data stores.
  3. Data store/copybook automatic association.
  4. Definition and association of selection classes with copybooks.
  5. Identification of register table data stores.

For more information, see the Front End Guide.