Final answer:
Yes, the descriptions of a Use Case can indeed be modified even though the Use Case itself doesn't change.
Step-by-step explanation:
Yes, the descriptions of a Use Case can be modified even though the Use Case does not change. Use Cases represent the functionality and behavior of a system and describe the interaction between the system and its actors. They are often used to analyze, design, and document systems.
Modifying the descriptions of a Use Case can help improve the clarity and understanding of the system's behavior. It can also help capture changes or updates to the system requirements or user needs. However, it is important to note that the Use Case itself, which represents the fundamental behavior, goals, and functionality, should not be modified without careful consideration and analysis.