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You searched for +publisher:"ETH Zürich" +contributor:("Matthiesen, Sven"). Showing records 1 – 2 of 2 total matches.

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ETH Zürich

1. Mussgnug, Moritz. Quantitative Usability Testing in User-Centered Product Development with Mobile Eye Tracking.

Degree: 2017, ETH Zürich

The usability assessment of tangible products holds manifold challenges in identifying the sources of usability problems and quantifying the evaluation of user-product interactions. In this field, the use of modern mobile eye tracking systems show great potential, as they are capable of non-invasively capturing the user’s field of vision, including the gaze point in almost any real-word setting. With the eye movements captured, the eye tracking data provides information, which offers an insight into the user’s intentions and struggles. However, the prospects of mobile eye tracking for usability assessments of tangible products are not well studied yet, and there is a lack of methods supporting the analysis of the resulting eye tracking data. Therefore, the goal of this thesis is to evaluate mobile eye tracking in usability assessments of tangible products over the conventional third-person view, and to develop methodological supports for the data analysis. A comparison study shows that the mobile eye tracking perspective leads to a more detailed description of the scene and a better explanation for the causes of usability problems, when compared to the third-person perspective. To facilitate the analysis of eye tracking data, three analysis methods have been developed. The Target-Based Analysis is a coding scheme for manual analysis, whereas the Scrutinizing algorithm and the Hand-Gaze Distance approach are semi-automated supports, detecting interruptions of the usage flow, considering fixation durations, saccade amplitudes and hand movements. The evaluation of the three methods shows that the Target-Based Analysis is applicable to a broad variety of applications, however, it is time-consuming. Both, the Scrutinizing algorithm and the Hand-Gaze Distance approach are able to reduce the manual effort and to identify usability problems, however, they are less accurate. The evidence-based description of the detected usability problems, derived from the mobile eye tracking data, are quickly understood, accepted, and foster a solution-oriented discussion, when presented to others. Overall, the application of mobile eye tracking in usability testing is vital, as it allows for a fine-granular and a quantifiable evaluation of user-product interactions. The three developed methods are of benefit for the analyst and enable the interpretation of eye tracking data in a more structured and partly automated way. In the future, with analysis methods developed further, mobile eye tracking is suitable to become an important element of usability assessments of tangible products. Advisors/Committee Members: Meboldt, Mirko, Matthiesen, Sven.

Subjects/Keywords: eye tracking + usability testing

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Mussgnug, M. (2017). Quantitative Usability Testing in User-Centered Product Development with Mobile Eye Tracking. (Doctoral Dissertation). ETH Zürich. Retrieved from http://hdl.handle.net/20.500.11850/272463

Chicago Manual of Style (16th Edition):

Mussgnug, Moritz. “Quantitative Usability Testing in User-Centered Product Development with Mobile Eye Tracking.” 2017. Doctoral Dissertation, ETH Zürich. Accessed October 16, 2019. http://hdl.handle.net/20.500.11850/272463.

MLA Handbook (7th Edition):

Mussgnug, Moritz. “Quantitative Usability Testing in User-Centered Product Development with Mobile Eye Tracking.” 2017. Web. 16 Oct 2019.

Vancouver:

Mussgnug M. Quantitative Usability Testing in User-Centered Product Development with Mobile Eye Tracking. [Internet] [Doctoral dissertation]. ETH Zürich; 2017. [cited 2019 Oct 16]. Available from: http://hdl.handle.net/20.500.11850/272463.

Council of Science Editors:

Mussgnug M. Quantitative Usability Testing in User-Centered Product Development with Mobile Eye Tracking. [Doctoral Dissertation]. ETH Zürich; 2017. Available from: http://hdl.handle.net/20.500.11850/272463


ETH Zürich

2. Leutenecker-Twelsiek, Bastian. Additive Fertigung in der industriellen Serienproduktion: Bauteilidentifikation und Gestaltung.

Degree: 2019, ETH Zürich

Additive Manufacturing (AM), often referred to as 3D printing, is developing very dynamically. The technology and its machines are so mature that additive series production of final components is possible. The digital process chain and in particular the freedom of design are the outstanding properties of the process. If these advantages are properly exploited, serial components can be produced economically - despite the still high manufacturing costs - which has already been proven by various applications. However, despite their high potential, the processes are by no means widely established in series production and are only hesitantly adopted by companies. The lack of know-how and expertise in dealing with the technology is named as a major obstacle by the industry. This applies mainly to the identification of suitable components and their production-specific design. In order to determine the reasons for the lack of expertise despite the provision of knowledge, a literature-based analysis of the reasons is carried out. On this basis, tools and transfer methods are developed to support the implementation of additive series production. An orientation scheme based on potential clusters provides assistance in identification, enabling manual identification. In addition, a documentation and evaluation system is provided which ensures efficient cooperation with AM experts and the formation of identification expertise in the company. Design is a key issue for AM, as it requires a radical rethink in comparison to conventional design, so that the full potential of the technology can be exploited. In order to offer a support suitable for the target group, design guideline is being developed consisting of the three elements: process characteristics, design principles and guideline values. The technology transfer and the transfer of the AM tools - with corresponding experience in their handling - is the prerequisite for the formation of AM expertise in the companies. The Experience-based Transfer Model (ETM) is developed for this purpose, taking into account the findings from the literature analysis. The implementation in the transfer projects shows that the developed support tools for identification and design are successfully applied in industrial applications. The ETM promotes an effective AM expertise formation in the company and supports the acceptance of the provided tools, since their suitability for use is experienced directly on the own product. The combination of support tools and transfer methods enables the implementation of additive manufacturing in series production and facilitates access to technology for companies. Advisors/Committee Members: Meboldt, Mirko, Matthiesen, Sven, Klahn, Christoph, id_orcid0000-0001-6947-3621.

Subjects/Keywords: Additive manufacturing (AM); Design for Additive Manufacturing (DfAM)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Leutenecker-Twelsiek, B. (2019). Additive Fertigung in der industriellen Serienproduktion: Bauteilidentifikation und Gestaltung. (Doctoral Dissertation). ETH Zürich. Retrieved from http://hdl.handle.net/20.500.11850/347164

Chicago Manual of Style (16th Edition):

Leutenecker-Twelsiek, Bastian. “Additive Fertigung in der industriellen Serienproduktion: Bauteilidentifikation und Gestaltung.” 2019. Doctoral Dissertation, ETH Zürich. Accessed October 16, 2019. http://hdl.handle.net/20.500.11850/347164.

MLA Handbook (7th Edition):

Leutenecker-Twelsiek, Bastian. “Additive Fertigung in der industriellen Serienproduktion: Bauteilidentifikation und Gestaltung.” 2019. Web. 16 Oct 2019.

Vancouver:

Leutenecker-Twelsiek B. Additive Fertigung in der industriellen Serienproduktion: Bauteilidentifikation und Gestaltung. [Internet] [Doctoral dissertation]. ETH Zürich; 2019. [cited 2019 Oct 16]. Available from: http://hdl.handle.net/20.500.11850/347164.

Council of Science Editors:

Leutenecker-Twelsiek B. Additive Fertigung in der industriellen Serienproduktion: Bauteilidentifikation und Gestaltung. [Doctoral Dissertation]. ETH Zürich; 2019. Available from: http://hdl.handle.net/20.500.11850/347164

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