Abstract: According to the rapid prediction of menu design in human-computer interaction interface, a model is derived based on Fitts’slaw and Hick’s law, which proposes a calculation method to forecast the time of selecting target through analyzing the transition from novice to expert behavior. An experiment is executed to test the validity of the model. Comparative results show that the data from experiments dovetails nicely with the data predicted by the model in all stages from novice to expert behaviorand the relativity between is 0.968.

Key words: Hick’s law, Fitts’s law, menu usability, human-computer interaction, visual search, spatial position

摘要： 针对人机交互界面菜单设计可用性预测问题，以席克定律和费茨定律为建模基础，提出一个全新的菜单交互可用性预测模型。该模型通过设计一种评估用户选择目标菜单项的耗时计算方法，预测对象涵盖从新手到专家所有层次的用户行为。实验结果表明，在用户从新手转换到专家行为的各个阶段，使用该模型预测得到的菜单交互可用性数据与实验测试得到的数据吻合较好，两者相关性达0.968，证明该模型能广泛应用于各类菜单设计过程中的可用性预测工作。

关键词: 席克定律, 费茨定律, 菜单可用性, 人机交互, 视觉搜索, 空间位置