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Auflistung nach Autor:in "Weber, Thomas"

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  • Zeitschriftenartikel
    Flexible IT platform for synchronizing energy demands with volatile markets
    (it - Information Technology: Vol. 60, No. 3, 2018) Schott, Paul; Ahrens, Raphael; Bauer, Dennis; Hering, Fabian; Keller, Robert; Pullmann, Jaroslav; Schel, Daniel; Schimmelpfennig, Jens; Simon, Peter; Weber, Thomas; Abele, Eberhard; Bauernhansl, Thomas; Fridgen, Gilbert; Jarke, Matthias; Reinhart, Gunther
    Abandoning fossil and nuclear energy sources in the long run and increasing amount of renewable energies in electricity production causes a more volatile power supply. Depending on external realities, renewable energy production emphasizes the need for measures to guarantee the necessary balance of demand and supply in the electricity system at all times. Energy intensive industry processes theoretically include high Demand Response potentials suitable to tackle this increasing supply volatility. Nevertheless, most companies do not operate their production in a flexible manner due to multiple reasons: among others, the companies lack know-how, technologies and a clear business case to introduce an additional level of flexibility into their production processes, they are concerned about possible impacts on their processes by varying the electricity demand and need assistance in exploiting their flexibility. Aside from fostering knowledge in industry companies, an IT-solution that supports companies to use their processes’ Demand Response potential has become necessary. Its concept must support companies in managing companies’ energy-flexible production processes and monetarize those potentials at flexibility markets. This paper presents a concept, which integrates both companies and energy markets. It enables automated trading of companies’ Demand Response potential on different flexibility markets.
  • Konferenzbeitrag
    Identifying Performance Challenges in Consistency Preserving View-Based Environments
    (Softwaretechnik-Trends Band 43, Heft 4, 2023) König, Lars; Weber, Thomas
    The development of systems, e.g., software systems or cyber-physical systems, becomes more and more complex. Successful approaches for reducing the complexity of their development are view-based model-driven approaches, where developers see only the relevant part of the system for a specific task. As these views still show the same system, their content may be semantically related and changes on one view might require changes on other views to keep them consistent. Although already used in industry, view-based approaches are still not a mature field of research and especially performance is often not a focus in their development. For industrial application, however, performance is crucial, as tools can otherwise become unusable with the extensive sizes of industrial models. To target this problem, we identify possible performance challenges of consistency preserving view-based environments and provide ideas on how to overcome them.
  • Konferenzbeitrag
    Supporting Software Developers Through a Gaze-Based Adaptive IDE
    (Mensch und Computer 2023 - Tagungsband, 2023) Weber, Thomas; Thiel, Rafael Vinicius Mourao; Mayer, Sven
    Highly complex systems, such as software development tools, constantly gain features and, consequently, complexity and, thus, risk overwhelming or distracting the user. We argue that automation and adaptation could help users to focus on their work. However, the challenge is to correctly and promptly determine when to adapt what, as often the users’ intent is unclear. To assist software developers, we build a gaze-adaptive integrated development environment using the developers’ gaze as the source for learning appropriate adaptation. Beyond our experience of using gaze for an adaptive user interface, we also report first feedback from developers regarding the desirability of such a user interface, which indicated that adaptations for development tools need to strike a careful balance between automation and user control. Nonetheless, the developers see the value in a gaze-based adaptive user interface and how it could improve software development tools going forward.
  • Konferenzbeitrag
    Tooling for Developing Data-Driven Applications: Overview and Outlook
    (Mensch und Computer 2022 - Tagungsband, 2022) Weber, Thomas; Hußmann, Heinrich
    Machine Learning systems are, by now, an essential part of the software landscape. From the development perspective this means a paradigmatic shift, which should be reflected in the way we write software. For now, the majority of developers relies on traditional tools for data-driven development, though. To determine how research into tools is catching up, we conducted a systematic literature review, searching for tools dedicated to data-driven development. Of the 1511 search results, we analyzed 76 relevant publications in detail. The diverse sample indicated a strong interest in this topic from different domains, with different approaches and methods. While there are a number of common trends, e.g. the use of visualization, in these tools, only a limited, although increasing, number of these tools has so far been evaluated comprehensively. We therefore summarize trends, strengths and weaknesses in the status quo for data-driven development tools and conclude with a number of potential future directions this field.
  • Konferenzbeitrag
    Usability and Adoption of Graphical Tools for Data-Driven Development
    (Proceedings of Mensch und Computer 2024, 2024) Weber, Thomas; Mayer, Sven
    Software development of modern, data-driven applications still relies on tools that use interaction paradigms that have remained mostly unchanged for decades. While rich forms of interactions exist as an alternative to textual command input, they find little adoption in professional software creation. In this work, we compare graphical programming using direct manipulation to the traditional, textual way of creating data-driven applications to determine the benefits and drawbacks of each. In a between-subjects user study (N=18), we compared developing a machine learning architecture with a graphical editor to traditional code-based development. While qualitative and quantitative measures show general benefits of graphical direct manipulation, the user’s subjective perception does not always match this. Participants were aware of the possible benefits of such tools but were still biased in their perception. Our findings highlight that alternative software creation tools cannot just rely on good usability but must emphasize the demands of their specific target group, e.g., user control and flexibility, if they want long-term benefits and adoption.