Final answer:
The MVC (Model-View-Controller) and PAC (Presentation-Abstraction-Control) architectures are interaction-oriented software architectures that separate concerns to promote clear divisions between user interfaces and business logic.
Step-by-step explanation:
The MVC (Model-View-Controller) and PAC (Presentation-Abstraction-Control) architectures are examples of interaction-oriented software architecture. These architectures are designed to separate concerns within an application, promoting a clear division between the user interface and the underlying business logic or data model. In MVC, the Model represents the application's data structure, the View is the user interface component, and the Controller is responsible for managing input and updating the Model and View accordingly.
The PAC pattern also follows a similar separation of concerns, organized into a hierarchy of agents where each agent has three components: Presentation, Abstraction (data), and Control (handling input). This structure facilitates a modular approach to building user interfaces. Both patterns emphasize the importance of separating how the data is represented and interacted with from the underlying application logic, which leads to more maintainable and scalable systems.