Abstract
Due to a lack of responsiveness of unplanned incidents and deviations between planning and reality, manual overplanning in production planning systems should be reduced with the help of high resolving and consolidated data. In this context, one promising approach is a specific decision-making support of the production supervisor as a decision-maker by using action recommendations of an assistance system. With vertical human-machine interaction, the specific capabilities according to the Men-Are-Better-At/Machines-Are-Better-At (MABA/MABA) principle can be applied. In accordance with intelligent information visualization of the assistance system and a tablet-application for usage in a production hall environment, the research presented in this paper focuses on the investigation of the polarity and the font size respectively angular character height of the assistance system application regarding to task performance and mental effort. In an eye-tracking study, 15 participants were presented a search task on a touchscreen either with positive or negative polarity. In addition in each trial of the experiment the angular character height (16, 20, 24, 28 arcmin) was varied randomly. The results show that the mean search time can be improved significantly with an angular character height of 24 arcmin. Moreover, the results indicate that positive polarity leads to smaller average pupil diameter. Which is associated with a lower mental workload.
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Acknowledgements
The presented project ProSense (production control based on cybernetic support systems and intelligent sensors) is supported by financial resources (02PJ2490) of the Federal Ministry of Education and Research (BMBF) within the frame concept “Research for the production of tomorrow” and support initiative “Intelligent networking in production—a contribution to industry 4.0”. It is supervised by the research center of Karlsruhe (PTKA).
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Nelles, J., Kuz, S., Schlick, C.M. (2016). User-Centered Design of Font Size and Polarity of Assistance Systems in Production Planning and Control. In: Deml, B., Stock, P., Bruder, R., Schlick, C.M. (eds) Advances in Ergonomic Design of Systems, Products and Processes. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48661-0_18
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DOI: https://doi.org/10.1007/978-3-662-48661-0_18
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