Which type of user interface does not belong in Appian Architecture?

The designation of desktop applications as not belonging in the Appian Architecture is accurate because Appian primarily focuses on web-based user interfaces that facilitate access to its applications across various devices. The platform is designed to enhance user experience through web interfaces, leveraging responsive design to cater to mobile and desktop browsers.

Embedded UIs, the Admin Console, and Sites and Tempos are integral parts of Appian. Embedded UIs allow for the integration of Appian components within other applications, providing a seamless experience. The Admin Console is essential for managing and configuring the Appian environment, giving administrators control over application management, security settings, and system performance. Sites and Tempos serve as the primary interfaces for users, allowing them to navigate applications, access workflows, and interact with data efficiently. Thus, the emphasis on web-based and integrated tools reinforces the cloud-first and mobile-friendly design principles that underpin Appian's architecture.