Portal is the interface for employees who don't have Appian login.

• A. Sites
• B. Process Modeler
• C. Automation
• D. Portal

Answer: (D)

The main idea here is that Appian uses different interfaces to fit how users will access the apps. Portal is the interface intended for people who don’t have an Appian login, giving them a controlled, entry point to interact with apps, submit forms, or complete tasks without needing a full Appian account. This makes it ideal for employees who aren’t licensed for Appian or external users who only need limited access.

For context, Sites is used to publish external content and pages, Process Modeler is the design tool used to create and modify business processes, and Automation covers automation and integration tasks. Among these, Portal specifically serves users without Appian credentials, which is why it’s the best fit for the statement.