Due to the increased number of features beyond the direct drivers task, more and more vehicles are provided with Driver Information-Systems. The question is, how the design and the menu-structure of the screens-based Human-Machine-Interface influences the usability of the system. With the method of the System Ergonomic Analysis, tasks for a screen based User-Interface in a automobil are considered. In a test run a conventional User-Interface is being analysed in a real driving test and is compared to the results of the System Ergonomic Analysis. For the tests according to the screen-based system a prototype vehicle with a Rapid Prototyping-Platform, that makes a flexible design of the User- Interface feasible, has been built. Two different menu structures with different menu dephts and observers are created. The test are done in a standing and a driving environment. The results are being evaluated and afterwards compared with the results of the theoretical System Ergonomical Analysis as well as the results of the Usability-Test of the conventional system. In the Usability-Test a preference for the flater menustructure is verified. There is a proof of the influence of the driving activity due to the quality of the solution of the tasks. In comparison of the conventional system with the screen based User-Interace there are different reasons for the errors according to the tasks.
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Due to the increased number of features beyond the direct drivers task, more and more vehicles are provided with Driver Information-Systems. The question is, how the design and the menu-structure of the screens-based Human-Machine-Interface influences the usability of the system. With the method of the System Ergonomic Analysis, tasks for a screen based User-Interface in a automobil are considered. In a test run a conventional User-Interface is being analysed in a real driving test and is compar...
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