Final answer:
Diagrams are a powerful way to represent different facets of a system including system scope, information flows, class relationships, and the entities within the system.
Step-by-step explanation:
Diagrams are versatile tools used to represent different aspects of a system. They can be used to explain the system scope, illustrating boundaries and the extent of a system. They also show information flows, highlighting how data moves through the system. Furthermore, diagrams can depict class relationships, showcasing how objects or entities within a system interact with one another based on their classifications. Lastly, diagrams can define entities in the system, providing a clear picture of the system's components and their characteristics.
Each type of diagram serves a unique purpose and, when combined, they offer a comprehensive understanding of a system's structure and dynamics. Examples include UML diagrams for class relationships, data flow diagrams for information flows, entity-relationship diagrams for system entities, and boundary diagrams for system scope.