A UML object diagram contains specific real objects and links to show relationships. The objects are merely instances of classes. Why bother to make an object model? The multiplicity rules in the class diagram are adhered to in the object diagram. So, object diagrams are sometimes used to validate the class model. If the object model invalidates the class model, then the class model may have to change.
My question: How can I make something that looks like an classic UML Object Model using Umpleonline ?
Example shown below: object model example