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Grasping the Concept of Decentralized Systems for Instant Messaging

Gebhardt, Luisa 1; Leinweber, Marc ORCID iD icon 1; Jacob, Florian ORCID iD icon 1; Hartenstein, Hannes 1
1 Institut für Informationssicherheit und Verlässlichkeit (KASTEL), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Whether a centralized, distributed, or decentralized system approach is selected for Internet-based services affects sovereignty and responsibilities of users and providers alike. Therefore, computer science education can contribute to informed decision-making and citizenship education by teaching power structures of and responsibilities in digital infrastructures. In this practical report, we focus on the example of instant messaging. We analyze three different algorithms for instant messaging that vary in their degree of (de-) centralization. Based on the analysis, we propose a teaching activity called Klemmchat using the concept of computer science unplugged to educate students on the discovered key aspects and trade-offs. We report on results obtained by teaching Klemmchat in two classes in grades 11 and 12. The evaluation shows that the activity is suitable for conveying trade-offs and helping students to engage with the topic. The results, however, leave open whether the acquired understanding affects usage decisions.

Postprint §
DOI: 10.5445/IR/1000150316
Veröffentlicht am 02.09.2022
DOI: 10.1145/3556787.3556864
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Informationssicherheit und Verlässlichkeit (KASTEL)
Kompetenzzentrum für angewandte Sicherheitstechnologie (KASTEL)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2022
Sprache Englisch
Identifikator KITopen-ID: 1000150316
HGF-Programm 46.23.01 (POF IV, LK 01) Methods for Engineering Secure Systems
Erschienen in Proceedings of the 17th Workshop in Primary and Secondary Computing Education
Veranstaltung 17th Conference on Primary and Secondary Computing Education Research (WiPSCE 2022), Morschach, Schweiz, 31.10.2022 – 02.11.2022
Verlag Association for Computing Machinery (ACM)
Seiten Art.-Nr. 10
Projektinformation JuBot (ZEISS-STFG, JuBot)
Schlagwörter Citizenship Education, Distributed Computing Education, Computer Science Unplugged
Nachgewiesen in Scopus
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