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Auflistung nach Schlagwort "human-centered design"

1 - 5 von 5
  • Konferenzbeitrag
    Affinity for technology interaction and fields of study: implications for human-centered design of applications for public administration
    (Mensch und Computer 2020 - Tagungsband, 2020) Wessel, Daniel; Heine, Moreen; Attig, Christiane; Franke, Thomas
    Affinity for Technology Interaction (ATI) describes whether a person approaches or avoids interaction with technology [1], making it an important variable in human-centered design. To determine whether ATI will likely remain an important variable in the future, we compared the ATI scores of those who will develop applications (students of media and computer science) with those who will use them in a specific context (students of public administration). We also looked for possible selection biases when conducting online samples regarding technology, by comparing a self-selected online sample of public administration employees with a sample of students of public administration conducted in a classroom, in which no selection biases should have had occurred. To locate the samples in the general population we also compared them with a quota sample of the German population. Results indicate markedly different approaches to technology interaction between the student samples and the online sample being more similar to the media and computer science students. We discuss consequences for the human-centered design process, especially for understanding the users.
  • Konferenzbeitrag
    Heuristics and Models for Evaluating the Usability of Security Measures
    (Mensch und Computer 2019 - Tagungsband, 2019) Feth, Denis; Polst, Svenja
    Security mechanisms are nowadays part of almost every software. At the same time, they are typically sociotechnical and require involvement of end users to be effective. The usability of security measures is thus an essential factor. Despite this importance, this aspect often does not receive the necessary attention, for example due to short resources like time, budget, or usability experts. In the worst-case, users reject or circumvent even strong security measures and technically secure systems become insecure. To tackle the problem of unusable security measures, we developed a heuristics-based usability evaluation and optimization approach for security measures. In order to make heuristics applicable also for non-usability experts, we enrich them with information from a joint model for usability and security. In particular, this approach allows developers and administrators to perform usability evaluations and thus enables an early tailoring to the user, complementary to expert or user reviews. In this paper, we present our approach, including an initial set of heuristics, a joint model for usability and security and a set of mapping rules that combine heuristics and model. We evaluated the applicability of our approach, which we present in this paper.
  • Workshopbeitrag
    How can Small Data Sets be Clustered?
    (Mensch und Computer 2021 - Workshopband, 2021) Weigand, Anna Christina; Lange, Daniel; Rauschenberger, Maria
    In many areas, only small data sets are available and big data does not play a significant role, e.g., in Human-Centered Design research. In the context of machine learning analysis, results of small data sets can be biased due to single variables or missing values. Nevertheless, reliable and interpretable results are essential for determining further actions, such as, e.g., treatments in a health-related use case. In this paper, we explore machine learning clustering algorithms on the basis of a small, health-related (variance) data set about early dyslexia screening. Therefore, we selected three different clustering algorithms from different clustering methods: K-Means, HAC and DBSCAN. In our case, K-Means and HAC showed promising results, while DBSCAN did not deliver distinct results. Based on our experiences, we provide first proposals on how to handle small data set clustering and describe situations in which using Human- Centered Design methods can increase interpretability of machine learning clustering results. Our work represents a starting point for discussing the topic of clustering small data sets.
  • Konferenzbeitrag
    How Sociologists, Social Workers, UX Experts and Homeless People Develop Digital Products Together
    (Mensch und Computer 2023 - Usability Professionals, 2023) Sowa, Frank; Harms, Patrick; Proschek, Katrin; Heinrich, Marco; Holzmeyer, Tanja
    This paper reflects on an interdisciplinary and method triangulation approach for digital product development. The research project "Smart Inclusivity for homeless people" (SIWo), conducted by the Ohm, is cited as an example. In the project, research methods from qualitative social sciences involving group discussions and interviews were combined with a human-centered design process to develop customized digital products that aim to support homeless people in their everyday life. In the Social Sciences Research subproject, (digital) needs of homeless people were identified. In a human-centered design process, these results were used to define the context of use for product development. The project yielded several digital solutions, including apps for information needs like "Stromer Max" and "Schlaue Lise," along with concepts for housing and peer support apps. Additionally, a public Wi-Fi and charging station was installed in Nuremberg. Incorporating qualitative social research methods into the product development process can provide valuable insights and improve the human-centered design process, especially in the context of addressing social issues like homelessness. These methods help understand user needs and preferences in a more nuanced way than traditional Design Thinking approaches. However, challenges of time-intensive evaluations and issues of bridging the gap between social research and technical product development have to be faced. Overall, the paper emphasizes the potential for societal transformations through such interdisciplinary collaboration in the field of product development.
  • Zeitschriftenartikel
    UX at the Right Level - Appropriately Plan the UX Expertise Using the PUXMM – A UX Maturity Model for Projects
    (i-com: Vol. 20, No. 1, 2021) Gilbert, David; Fischer, Holger; Röder, Dirk
    Usability and user experience maturity models are used to evaluate the capabilities of an organization in order to provide an assessment of their ability to develop usable products. But, as the main focus of such models is on an all-encompassing organizational level, they are difficult to implement in more complex organizations with a wide range of diverse and interlinked projects. This paper presents a project related UX maturity model, which was developed at DB Systel to address this issue: the PUXMM. It takes into account the nested internal customer relationships between departments and subcontractors and applies a human-centered design approach. There are two practical application scenarios for the PUXMM. It can be used to determine the UX maturity level of an ongoing project and as checklist to align a project to a desired maturity level from the outset.