What is the conceptual model that represents a system in user experience?

In user experience, a conceptual model is a representation that helps users understand how a system works through an abstract visualization of its components and functions. The system model specifically captures this by detailing the various parts of the system and how they interact, providing a framework for users to grasp the underlying mechanics of the system.

This model allows both designers and users to create shared understanding, bridging the gap between users' expectations and what the system delivers. By focusing on the overall structure, functions, and relationships within the system, the system model enhances usability, aiding in more intuitive interactions.

The other concepts, while related to user experience, do not serve the same purpose. The user model focuses on the characteristics, needs, and behaviors of the users themselves; the process model outlines the sequence of actions or steps taken within a system; and the interaction model details how users interact with the system, typically emphasizing user inputs and system responses. While these models are all valuable in the design and analysis of user experience, they don't encapsulate the entire system structure like the system model does.