This Object Diagram Example is an example of a class diagram. The fundamental concepts of class and object diagrams are the same. Object diagrams also represent a system's static view, but this static view is a snapshot of the system at a specific point in time. Object diagrams are used to create an instance of a collection of objects and their relationships. To use a diagram effectively, its purpose must be clearly understood. Object diagrams serve similar functions to class diagrams. On the other hand, a class diagram represents an abstract model made up of classes and their relationships. On the other hand, an object diagram illustrates a concrete instance at a specific time.