This procedure lets you indicate selection classes, which are classes that you want to apply the filter on in order to obtain a subset of data stores.
To define the primary extraction criteria:
The Data Subset Extraction module automatically extracts all the environment files containing the selected classes, entering them into a specific step. Once the method has been created, the remaining data stores (that is the data stores that are not sensitive to the selected classes) will initially be excluded from elaboration. During the Method Confirmation phase, they can be included in the method again. These data stores will then be integrally copied into the new environment generated by the method involved.