In order to reduce the cognitive workload and operation difficulty

this paper utilizes an adaptive human computer interaction strategy based on context awareness

and analyzes its interaction mechanisms and visualizations. A new user interface model is proposed to guide the interface design and prototype development. The model defines different types of channels for context data acquiring

and describes the context information’s functions and logical structures. Adaptation triggering rules and controlling strategies are used to restrict the state transitions during the operation process. Interface modes and their transition functions are defined

and the related visualization presentations styles are described

such as reconstruction

replacement

geometry transition

filter and push. The model constructs the evaluation functions through the different metrics from the user feedback information

and it can help adjust and refine the adaptation mechanism. Finally

a prototype of adaptive user interface for mobile phone contact list is provided

and it supplies users with high efficiency and satisfactions during the user test. It illustrates the feasibility and effectiveness of the proposed user interface model.