This Object Diagram of the Book Management System shows the sequence of events from top to bottom. The objects are depicted as labeled rectangles at the top and bottom of the diagram, with a lifeline descending the entire length. Interactions between objects are represented by horizontal arrows pointing left or right. These are messages that are exchanged between the objects. They are used to demonstrate how objects in a system interact with one another over time. A sequence diagram assists a system designer in visualizing and comprehending the order in which these interactions occur. This can help identify potential issues and optimize how everything works.
