This Object Diagram for the Specific Instance of One Car depicts the system's instances and the relationships between them. You can investigate the behavior of a system at a specific point in time by instantiating the model elements in a class diagram. An object diagram is a UML structural diagram that depicts classifier instances in models. Object diagrams illustrate specific examples of those classifiers and the connections between those instances at a given time. Object diagrams can be created by instantiating the classifiers in class, deployment, component, and use-case diagrams.