unfinished task is and provides the shortcuts between the related tasks. The subjects' subjective response also indicated that they preferred the improved interface obviously. Usually, the users expect an interface that can judge if the task has been finished automatically and is simple to be operated. Providing the shortcuts can ensure the accuracy in data processing, and significantly improved the performance of the related tasks.
The results of the research revealed that exploring the users' operating problems and quoting the principles of interface design in designing the interface of an engineering data management system could increase the users' performance and prevent the users' errors.
This study was supported by the National Science Council of the Republic of China (Contract NSC 86-2212-EO07-012)
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