Which design object is primarily used to enable users of different types to interact with the application?

The design object that primarily facilitates interaction among users of different types within an application is the Site. A Site acts as a centralized hub where various user roles can access and interact with the application’s functionalities. It is designed to enhance user experience by organizing access to features, making it easier for users to navigate through tasks and information relevant to their roles.

Sites allow for customization of user experiences based on their needs, providing specific content, tools, and visual elements tailored to different user types. This is essential for applications that serve multiple user personas, as it helps ensure that users can efficiently accomplish their tasks in an intuitive manner.

Other design objects, while contributing to overall application functionality, do not focus primarily on user interaction. Integrations are generally used for connecting with external systems, Process Models define workflows and automate business processes, and Interfaces are used to design specific screens or form elements but do not encapsulate the overall user interaction experience as Sites do.