为降低移动设备控制与对话中的用户认知负荷和操作难度，采取基于情境感知的自适应人机交互策略，分析其中的交互机制和可视化形式，建立用户界面模型指导界面设计和原型构建。该模型制定了原始情境数据的分类感知方式、作用机制和结构化组织形式，设定不同的自适应控制策略和情境触发规则，对自适应交互状态转移过程进行约束。形式化定义自适应过程中的界面模式及其转换函数，并提出重构、替代、几何变换、过滤和推送等具体可视化表达形式。根据用户反馈信息选取显性和隐性评价指标，构造评价函数评估自适应效果，对自适应机制进行相应调整与优化。应用此模型进行自适应手机名片夹界面的视觉设计和原型开发，测试结果表明，自适应界面能有效提高用户操作效率和主观满意度，进一步验证了模型的可行性与有效性。

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.