To reduce the subjective influences and errors from traditional usability evaluation

an approach based on eye-tracking was proposed for the mobile computing user interface.It analyzed the recognition issues in human-computer interaction

and selected fixation durations

numbers

matrix of fixation transfer frequency and other data related to eye movements as measuring criteria.Evaluation strategies were generated for efficiency of visual search and information processing

which explored the domain task and top-down visual mechanism to guide the optimization for interface design.The approach was applied for the usability evaluation with smart phones; as a result

it differentiated usability levels effectively and made consistency with subjective feedback.It was well done to illustrate the feasibility and effectiveness for the proposed approach.