@inproceedings{65901, author = {{Steffens, Hanna and Yigitbas, Enes and Sauer, Stefan}}, booktitle = {{Proceedings of the 28th International Conference on Human-Computer Interaction (HCII 2026)}}, publisher = {{Springer}}, title = {{{Effects of Vertical Price Placement on Consumer Behaviour: A VR-Based Investigation Including Eye Tracking}}}, year = {{2026}}, } @inproceedings{66687, abstract = {{With a range of consumer devices available, augmented reality (AR) continues to make its way into everyday life and is also increasingly used in professional and sensitive contexts. Especially collaborative use cases, such as remote meetings or maintenance, offer potential, but also move issues in the area of privacy and security into focus. We conducted a scoping review to gain an overview of the current situation and found a lack of clear standards, with most approaches focusing on single protection features. Using the knowledge from the scoping review, we set up and conducted expert interviews. They revealed that end-users are almost completely dependent on developers or device manufacturers regarding their options for protection. The interviews also showed that most developers put little focus on privacy and security, often due to external constraints, such as employers treating the topic as an “afterthought” and not budgeting enough time for it. The experts suggested offering better software support to developers to enable the inclusion of privacy and security with less overhead as a solution. It was also suggested that a general rise in privacy and security awareness could improve the overall situation.}}, author = {{Krings, Sarah Claudia and Yigitbas, Enes and Sauer, Stefan}}, booktitle = {{Blending Experiences in Interaction Design}}, editor = {{Maciel, Cristiano and Spano, Davide Lucio and Ardito, Carmelo and Freire, André and Prates, Raquel}}, isbn = {{978-3-032-22934-2}}, pages = {{253–276}}, publisher = {{Springer Nature Switzerland}}, title = {{{Perspectives on Privacy and Security in Collaborative AR - Insights from a Scoping Review and an Expert Interview Study}}}, year = {{2026}}, } @inproceedings{60226, author = {{Koppius, Sebastian Niklas and Beutner, Marc and Krings, Sarah Claudia and Schäfers, Johannes and Temmen, Katrin and Sauer, Stefan and Pieper, Carsten and Schuba, Kornelia}}, location = {{Paderborn}}, pages = {{122--129}}, title = {{{Die Ausbildung von morgen gestalten: mit 5G und für 5G.}}}, volume = {{23}}, year = {{2025}}, } @inproceedings{60915, author = {{Krings, Sarah Claudia and Yigitbas, Enes and Sauer, Stefan}}, booktitle = {{Proceedings of the 29th International Workshop on Personalization and Recommendation}}, title = {{{Perspectives on Contexts and Adaptations for Cross-Reality}}}, year = {{2025}}, } @inproceedings{53819, author = {{Krings, Sarah Claudia and Yigitbas, Enes and Sauer, Stefan}}, booktitle = {{Proceedings of the 10th International Working Conference on Human-Centered Software Engineering (HCSE'24)}}, title = {{{Developing a VR Factory Walkthrough for Use in Schools}}}, year = {{2024}}, } @inproceedings{48368, abstract = {{Low-code development platforms (LCDPs) recently sparked interest in both academia and industry, promising to speed up software development and make it accessible to users with little or no programming experience. Thus, the mass-development of software applications that are custom-made to the tasks, skills, and preferences of end users is potentially enabled. Although different LCDPs have been analysed with respect to their functionality and applied to exemplary case studies in recent work, there is a shortage of experience reports in which LCDPs are used to digitize business processes in small and medium manufacturing enterprises. In this paper, we therefore summarize our experience from supporting industry partners to identify business processes that are suitable for being implemented with low-code technologies and to select an LCDP that meets the requirements of the business process while aligning with the overall digitization strategy of the respective company. We also present the opportunities and challenges of the low-code approach as perceived by industry partners. In summary, the low-code approach should be seen as an essential factor for the digitization of business processes in small and medium manufacturing companies.}}, author = {{Weidmann, Nils and Kirchhoff, Jonas and Sauer, Stefan}}, publisher = {{Springer}}, title = {{{Digitizing Processes in Manufacturing Companies via Low-Code Software (to appear)}}}, year = {{2023}}, } @inbook{29928, author = {{Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective}}, editor = {{Vogel-Heuser, Birgit and Wimmer, Manuel}}, publisher = {{Springer-Vieweg}}, title = {{{Self-Adaptive Digital Assistance Systems for Work 4.0}}}, year = {{2022}}, } @inproceedings{41164, abstract = {{Companies show an increasing interest in low-code development platforms to facilitate application development by domain experts without sophisticated software development knowledge. Thus, companies aim for a more efficient development of more effective applications since domain experts as so-called citizen developers are no longer limited by the availability and domain knowledge of trained software developers. Nevertheless, efficiency and effectiveness of application development is traditionally also largely influenced by the use of a suitable software development method. Domain experts are, however, not trained in software development methods. This introduces a risk of domain experts creating unusable applications or exceeding the designated time frame of a project (or both). In this paper, we therefore propose an initial version of a situational software development method which supports domain experts in manufacturing companies during the low-code development of applications. The method can be tailored based on situational factors, considering application requirements, features of the used low-code development platform, and characteristics of the development team. We also present feedback corroborating the usefulness of our method and future extension points based on expert interviews.}}, author = {{Kirchhoff, Jonas and Weidmann, Nils and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the 25th International Conference on Model Driven Engineering Languages and Systems: Companion Proceedings}}, publisher = {{ACM}}, title = {{{Situational Development of Low-Code Applications in Manufacturing Companies}}}, doi = {{10.1145/3550356.3561560}}, year = {{2022}}, } @misc{21601, abstract = {{The invention describes a distributed merchandise management system, in which the client, retailer and the manufacturer are linked by a network. This is implemented by a cloud storage (105), the cloud storage (105) comprising a means (105 a) for storing data, a means for receiving first data from a first network node (110), the first data being associated with a physical object, a means for receiving request data from a second network node (120), a means for receiving second data from a third network node (130), the second data being associated with the first data and comprising at least one data piece adapted to change the first data depending on the received request data, a means for changing the first data based at least in part on the second data and the request data, and a means for sending a changed portion of the first data from the cloud storage (105) to the first network node (110).}}, author = {{Göllner, Thomas and Schwarz, Jan-Hendrik and Gottschalk, Sebastian and Sauer, Stefan}}, title = {{{Distributed merchandise management system}}}, year = {{2021}}, } @inproceedings{20540, author = {{Jovanovikj, Ivan and Thottam, Anu Tony and Joseph Vincent, Vishal and Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the 9th International Conference on Model-Driven Engineering and Software Development }}, location = {{Vienna}}, pages = {{232--239}}, publisher = {{SCITEPRESS}}, title = {{{A Modeling Workbench for the Development of Situation-specific Test Co-Migration Methods }}}, year = {{2021}}, } @inproceedings{21707, author = {{Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the 13th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2021)}}, publisher = {{ACM}}, title = {{{Using Augmented Reality for Enhancing Planning and Measurements in the Scaffolding Business}}}, year = {{2021}}, } @inproceedings{19632, author = {{Jovanovikj, Ivan and Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE'20)}}, pages = {{216--224}}, publisher = {{Springer}}, title = {{{Augmented and Virtual Reality Object Repository for Rapid Prototyping }}}, year = {{2020}}, } @inproceedings{21483, author = {{Jovanovikj, Ivan and Weidmann, Nils and Yigitbas, Enes and Anjorin, Anthony and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the First International Conference on Systems Modelling and Management, ICSMM 2020 }}, editor = {{Babur, Önder and Denil, Joachim and Vogel-Heuser, Birgit}}, isbn = {{9783030581664}}, issn = {{1865-0929}}, location = {{Bergen, Norway}}, publisher = {{Springer}}, title = {{{A Model-Driven Mutation Framework for Validation of Test Case Migration}}}, doi = {{10.1007/978-3-030-58167-1_2}}, year = {{2020}}, } @article{16570, author = {{Jovanovikj, Ivan and Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, journal = {{Softwaretechnik-Trends, Proceedings of the 22st Workshop Software-Reengineering & Evolution (WSRE) & 11h Workshop Design for Future (DFF)}}, title = {{{Challenges in Model-Driven Development of Multi-Platform Augmented Reality Applications }}}, year = {{2020}}, } @inproceedings{15604, author = {{Jovanovikj, Ivan and Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the 8th International Conference on Model-Driven Engineering and Software Development - Volume 1: MODELSWARD}}, isbn = {{978-989-758-400-8}}, location = {{Valletta}}, title = {{{Concept-based Co-Migration of Test Cases}}}, doi = {{10.5220/0009171404490456}}, year = {{2020}}, } @article{15605, author = {{Jovanovikj, Ivan and Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, issn = {{1613-0073}}, journal = {{Software Engineering 2020 Workshopband}}, location = {{Innscbruck}}, title = {{{Test Case Co-Migration Method Patterns}}}, year = {{2020}}, } @inbook{15267, author = {{Yigitbas, Enes and Jovanovikj, Ivan and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Handling Security, Usability, User Experience and Reliability in User-Centered Development Processes - IFIP WG 13.2/13.5}}, publisher = {{Springer, LNCS}}, title = {{{On the Development of Context-aware Augmented Reality Applications }}}, year = {{2020}}, } @inproceedings{16274, author = {{Jovanovikj, Ivan and Nagaraj, Achyuth and Yigitbas, Enes and Anjorin, Anthony and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the 1st IEEE/ACM International Conference on Automation of Software Test AST}}, location = {{Seoul}}, pages = {{31--40}}, publisher = {{ACM}}, title = {{{Validating Test Case Migration via Mutation Analysis }}}, year = {{2020}}, } @inproceedings{16790, author = {{Krings, Sarah Claudia and Yigitbas, Enes and Jovanovikj, Ivan and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the 12th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2020)}}, isbn = {{978-1-4503-7984-7/20/06}}, title = {{{Development Framework for Context-Aware Augmented Reality Applications}}}, doi = {{10.1145/3393672.3398640}}, year = {{2020}}, } @article{15266, author = {{Yigitbas, Enes and Jovanovikj, Ivan and Biermeier, Kai and Sauer, Stefan and Engels, Gregor}}, journal = {{International Journal on Software and Systems Modeling (SoSyM)}}, publisher = {{Springer}}, title = {{{Integrated Model-driven Development of Self-adaptive User Interfaces }}}, year = {{2020}}, }