Creating a Subset › Plan a Subset › Subset Planning for Task Not in Task Tables › Using the Expansion Tables

Using the Expansion Tables

1. Consider the task that you want to accomplish with the subset.
   • If you want to delete views, see the Plan a Subset to Delete Views section.
   • If your task is to delete an object, consider recommendations in Plan Alternative to Subsetting for Object Deletion. If an alternative is not feasible and your task involves deleting shared objects, see the Plan a Subset to Delete Shared Objects section.
   • For all other tasks, identify the type of objects that are most closely related to the task.
2. Determine whether the objects required for the tasks are scoping objects only, scoping objects that are also expansion objects, or expansion objects only. See the “About Subsetting” chapter in this guide. If your task requires modifying only high‑level scoping objects, you do not need the expansion tables. Proceed with creating the subset and scope the objects with the default protection and expansion.
3. For the objects that are expansion objects, note the types of scoping objects that include it. For the considerations on selecting the best one for your task, see the Choose the Right Scoping Object section.

   For example, if you are working on screens and the Screen scoping object type includes the desired object, check the expansion table for Screen first.

4. Refer to the correct expansion table to identify the expansion level of the scoping object that includes the expansion object. If the object you need is included in multiple expansions, note the protection of the expansion object at each expansion and make note of the lowest one adequate for your task.

   For the considerations, see the Select the Lowest Expansion Level that Contains Needed Objects section.

5. Evaluate the default protection that is associated with the objects you need.

   For the considerations, see the Determine Whether to Accept or Change Default Protection section.

6. With your list of the required scoping objects, and the expansion and protection you plan to request, see the Add Subset Definition procedure for step-by-step instructions.