Again, there is a big difference between removing an object from a diagram, and deleting an object from your model: If you delete an object from within a diagram, you are only removing the object from that particular diagram: the element will still be part of your model and if there are other diagrams using the same element they will not suffer any change. If, on the other hand, you delete the element from the Tree View, you are actually deleting the element from your model. Since the element no longer exist in your model, it will be automatically removed from all the diagrams it appears in.
De nou, hi ha una gran diferència entre esborrar un objecte d' un diagrama, i esborrar un objecte del model: si esborreu un objecte des de un diagrama, només esteu eliminant l' objecte per aquest diagrama en particular: l' element encara serà part del model i si hi ha altres diagrames usant el mateix element no patiran cap canvi. Si d' altra banda, esborreu l' element de la vista d' arbre, l' esteu esborrant realment del model. Com que l' element ja no existeix en el model, serà eliminat automàticament de tots els diagrames en els que aparegui.