Digital Library of Gesellschaft für Informatik e.V.
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No Field Without Access: Recruitment as a Core Component of HCI Field Studies
No full textDue to the often-times small sample sizes and high heterogeneity within specific groups of people, the targeted selection and recruitment of suitable participants is a central component of field research. A careful recruitment strategy is crucial in order to gain access to relevant, specific and often-times vulnerable groups to generate a diverse sample that corresponds to the complexity of sociotechnical systems in field research. Hence, recruitment processes need to be scrutinised in their placement, wording and inclusion/ exclusion criteria to not only consider demographic characteristics but also social and contextual factors that can influence willingness and ability to participate.
The presented empirical accounts and scholarly reflections emphasise that recruitment is an integral part of the research process with direct implications for the diversity in research participation and hence realistic embedding of researched technologies. Within the methodological discussion of conducting field studies in HCI, recruitment should not be treated as a separate or preliminary step and must be reflected as part of the methodological design and the communication of results
SmartHome Forensics – Ansätze und Szenarien
No full textDie Anzahl der Haushalte mit „smarten“ IoT-Geräten steigt ebenso wie die Vielfalt an unterschiedlichen Geräten und Technologien. Das Forschungsprojekt „SmartHome Forensics - Grundlagen und Perspektiven“ beschäftigt sich mit der Analyse von Smart-Home-Geräten auf ihre Relevanz in der polizeilichen Ermittlungsarbeit. Es werden dabei unterschiedliche IoT-Geräte auf ihre Eigenschaften und ihren Nutzen zur Rekonstruktion von Tathergängen betrachtet und bewertet. Auch werden Methoden zur automatisierten Erkennung von relevanten Geräten am Tatort entwickelt.Letztendlich soll der Mehrwert für die Ermittlungen durch die (automatisierte) Auswertung der digitalen Spuren aus am Tatort vorhandenen IoT-Geräten aufgezeigt werden. In diesem Beitrag stellen wir in einem kurzen Survey zunächst verwandte Arbeiten vor und erläutern dann die Projektziele, erste Lösungsansätze und untersuchte Szenarien
Bits, Bytes, Kids - Wie kleine und große Menschen die Informatik beschreiben würden
No full textWas ist eigentlich Informatik? Das ist gar nicht so einfach zu erklären. Weder für Erwachsene, noch für Kinder. Zusammen mit GI-Mitglied Carolin Neumann haben wir ein paar kleine Menschen gefragt, wie sie die Informatik (oder die Arbeit ihrer Eltern) beschreiben würden. Und dann die Mitglieder unseres Präsidiums gebeten, mit uns zu teilen, wie sie Kindern erklären würden, was Informatik ist
Agile Participation in Interdisciplinary Projects
No full textAgile and participatory development processes are essential for the development of inclusive assistive technologies, especially when it comes to addressing the needs of people with cognitive impairments and their caregivers. This paper presents an interdisciplinary and iterative methodology combining the principles of agile software development with participatory research approaches to promote active user involvement throughout all phases of application development and implementation. The approach is illustrated by experiences gained in the project ”Cultural Participation in the Museum”, which aims to improve the accessability of museums for people with cognitive impairments. The process combines creative ideation, mockups, prototyping and multiple evaluation phases involving social workers, caregivers, museum personnel and the primary user group - the ”museumsteam”, a group of people with cognitive impairments. Practical experiences highlight the value of co-creation, iterative feedback loops and the importance of adapted communication and research techniques to ensure accessibility and usability. Our results demonstrate that agile participation does not only improve the relevance and quality of developed technologies, but also supports user empowerment and fosters inclusion. The presented approach serves as a practical guideline for research and development projects aiming to address the diverse needs of people with cognitive impairments through inclusive, interdisciplinary collaboration
IT Forensic Challenges and Comparative Insights: A Comparative Analysis of the NIS-2 Framework (2022) with the BSI IT Forensic Guide (2011)
No full textThis study analytically examines the BSI Guide for IT Forensics (2011) and the NIS-2 Directive (2022) and their influence on digital forensics and anti-forensics techniques. While the BSI Guide provides a methodology for forensic investigations, NIS-2 sets out cybersecurity risk management obligations and strict incident reporting requirements. Anti-forensic methods such as log manipulation, encryption, and data obfuscation hinder forensic traceability and conflict with NIS-2's compliance-driven mandates. A key challenge is whether NIS-2 inadvertently facilitates anti-forensics by restricting forensic access through stricter data protection and encryption policies. This paper examines the tensions between forensic integrity and cybersecurity regulation and argues the need for a harmonized framework that balances regulatory compliance with forensic feasibility to ensure the reliability of evidence in an evolving threat landscap
Friction by Design: Tangible Encounters with Large Language Models
No full textWe present Erika, a 1980s East German typewriter reengineered as a tangible AI interface. Connected to a large language model via a microcontroller and WiFi, Erika allows users to type prompts and receive printed AI-generated responses—without screens or digital interfaces. Used in public exhibitions by over 1,500 participants, Erika reveals how generative AI can be made slow, tangible, and discussable. The rhythmic typing, mechanical delay, and nostalgic aesthetics invite reflection on the materiality of interfaces, the opacity of AI, and the evolving role of human–machine communication. Erika addresses the workshop theme Tangibles and AI by showing how embodied, screenless interaction can open new pathways for critical engagement with artificial intelligence in physical space
Das Leseverstehen von informatischen Modellierungen
No full textModellierung als informatische Schlüsselkompetenz stellt Lernende vor kognitive und
sprachliche Herausforderungen, beispielsweise im Hinblick auf das Leseverstehen von Modellen und Visualisierungen. Aufgrund der Phase der kognitiven Entwicklung werden diese im Lernalter von bis zu ca. elf Jahren als besonders hoch angenommen. Insbesondere wegen der Neueinführung des Pflichtfaches Informatik in den Klassen 5/6 in Nordrhein-Westfalen bedarf es deswegen geeigneter Methoden der Diagnose. Solche zu entwickeln und Gelingensbedingungen für die nachhaltige Gestaltung von schulischen Lernprozessen abzuleiten ist Ziel dieser Arbeit. Für das Aufgabendesign werden interdisziplinäre sprachsensible Methoden verwendet
Sensorkit: A Toolkit for Simple Sensor Data in Research, Education and Beyond
No full textThe interaction with and implications of simple sensor data play an increasingly important role in the design and use of smart interactive system, e.g. in the home. We present an updated version of our Sensorkit, a tool for collecting, processing, visualizing and interacting with simple sensor data. The Sensorkit is an open tool that comes with all that is needed 'in a box' and works 'out of the box'. We present recent new features such as new sensors or an integrated annotation tool for lay users that is also a flexible support for researchers. We show the great flexibility of the Sensorkit as a research tool for explorative and creative sensor usages and for privacy research in the home. We have also gained valuable experiences in educational uses in a wide variety of settings. We hope to inspire similar or other creative uses in research, education and beyond
Enhancing Vocational Education through AI-driven Learning and Competence Assessment: The DiAgnostiK Project
No full textThe DiAgnostiK project develops digital tools for the systematic assessment and support of competencies in inter-company apprenticeship training. Up to now, digital or asynchronous learning methods have not been implemented in this setting. Taking into account the different skill levels of apprentices, DiAgnostiK introduces digital tools for the continuous assessment of theoretical competencies, a framework for the documentation of practical skills, and an integrated platform connecting all involved parties. Using Large Language Models, DiAgnostiK generates adaptive, interactive learning materials and questions specifically tailored to trades such as carpentry, interior design, painting, and dental technology. This significantly reduces the workload for instructors. It is hypothesized that learning methods tailored to the trades increase accessibility for students, while digital and asynchronous access to learning materials allows students to learn at their convenience. Consequently, DiAgnostiK significantly improves the quality of vocational education and reduces dropout rates. To our knowledge, this is the first systematic application of LLM-generated content tailored for German inter-company vocational training
Architektur-Reviews für nachhaltige IT Landschaften
No full textArchitektur-Reviews dienen der Weiterentwicklung der IT-Landschaft, indem verwertbare Ergebnisse binnen sechs bis acht Wochen vorliegen. Wir zeigen exemplarisch den Nutzen dieser Methode, ihre Funktionsweise sowie Best Practices, abgeleitet aus über zehn Jahren Erfahrung von Lufthansa Cargo und S&N Invent