How Migration Rules Are Used

Two sets of rules are documented:

Aggregate Object Expansions Tables-Aggregate object expansion is the process of determining which objects are migrated with the selected aggregate and whether proper conditions exist for the migration to succeed.
The Aggregate Object Expansions Tables contain a list of all expandable aggregate object types for migration. For each type of aggregate object, the table lists:
- Component objects-Objects that are always migrated with the aggregate object
- Companion objects-Objects that are migrated with the aggregate object only if they do not already exist in the destination model.
- Enabling objects-Objects that must exist in the destination model for the migration to succeed. If they are absent, migrate them with the aggregate object.
- Special cases-Objects that are migrated with the aggregate object only if certain other objects exist in the destination. The migration can succeed even if these objects are absent.
Special Situation Aggregate Actions-These actions relate to the special cases noted in the Aggregate Object Expansions Tables.