After having synchronized your models, you can develop them by modification in their diagrams. This method does not however guarantee consistency between the two models.

Denormalization wizards have been created to ensure such consistency. They allow you to modify definition of one model while maintaining consistency with the other.

The wizards also allow you to quickly carry out duplication or merging operations without mapping transfer and/or without source object deletion when you wish to transfer modifications in the relational model.