Which design object focuses on external systems the application must communicate with?

• A. Interface
• B. Integration
• C. Site
• D. Process Model

Answer: (B)

An Integration design object models how the application talks to external systems. It defines the connection details, the endpoint, the HTTP method, authentication, and how data is sent to and received from the outside service. It also covers input and output mappings, any necessary data transformations, and error handling so Appian can reliably communicate with the external system. Interfaces are for user interactions, Site is about hosting interfaces for access, and a Process Model handles internal business workflow. When you need to connect to a REST or SOAP service, or interact with an external database or system, you encapsulate that communication in an Integration so other parts of the app can reuse it.