Auflistung nach Autor:in "Sellung, Rachelle"
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- KonferenzbeitragAn interdisciplinary approach to develop secure, usable and economically successful software(2016) Hofer, Janina; Sellung, RachelleSome argue that software developers of security solutions often neglect the importance of incorporating usability and socio-economic aspects and focus more on security and privacy aspects. However, it can be observed that many solutions are not accepted by both the users and the market, even though they are technically sophisticated. This work-in-progress paper proposes an interdisciplinary approach and a prospective supportive tool that guides the developer through the process, which is referred to as the Wizard. It consists of selected, carefully analyzed and edited methods and standards from the fields of (a) Usability and User Experience, (b) Socioeconomics, and (c) IT-Security and other disciplines. The Wizard proactively recommends various methods according to the status of the development and assists in their selection and application.
- KonferenzbeitragEvaluating complex identity management systems - the futureid approach(Open Identity Summit 2015, 2015) Sellung, Rachelle; Roßnagel, HeikoThis in-progress paper will discuss the importance of evaluation methods in complex large scale projects, specifically those regarding identity management systems and electronic Identities (eIDs). It will depict the advantages of using a Design Science methodological framework approach and show how the EU project FutureID has utilized this methodology to bring multiple disciplines perspectives together in a harmonized evaluation.
- KonferenzbeitragOn the Market for Self-Sovereign Identity: Structure and Stakeholders(Open Identity Summit 2021, 2021) Kubach, Michael; Sellung, RachelleFor SSI solutions to make a significant impact, they need to be designed to cater to the requirements of the market to be adopted. Therefore, this paper proposes a structure of the market for SSI solutions, analyses its stakeholders, and surveys its current state.
- KonferenzbeitragOpen Identity Summit 2023 - Complete proceedings(Open Identity Summit 2023, 2023) Chadwick, David W.; Kubach, Michael; Sette, Ioram; Johnson Jeyakumar, Isaac Henderson; Bochnia, Ricardo; Richter, Daniel; Anke, Jürgen; Sellung, Rachelle; Kubach, Michael; Otto, Sarah; Meisel, Michael; Fernet, Laouen; Mödersheim, Sebastian; Krauß, Anna-Magdalena; Kostic, Sandra; Sellung, Rachelle A.; Pöhn, Daniela; Grabatin, Michael; Hommel, Wolfgang; Kubach, Michael; Henderson, Isaac; Bithin, Alangot; Dimitrakos, Theo; Vargas, Juan; Winterstetter, Matthias; Krontiris, Ioannis; Schwalm, Steffen; Fuxen, Philipp; Hackenberg, Rudolf; Heinl, Michael P.; Ross, Mirko; Roßnagel, Heiko; Schunck, Christian H.; Yahalom, Raphael; Ruff, Christopher; Benthien, Benedict; Orlowski, Alexander; Astfalk, Stefanie; Schunck, Christian H.; Fritsch, Lothar; Fähnrich, Nicolas; Köster, Kevin; Renkel, Patrick; Huber, Richard; Menz, Nadja
- KonferenzbeitragResearch on User Experience for Digital IdentityWallets: State-of-the-Art and Recommendations(Open Identity Summit 2023, 2023) Sellung, Rachelle; Kubach, MichaelDigital identity wallets are central components for Decentralised and Self-Sovereign Identity (SSI) approaches. They are the interface for users to manage their identities and gain access to services. Hence, the usability and user experience of these wallets is pivotal for the adoption of those popular and privacy friendly identity management concepts. As research on the user experience of wallets is still in its infancy, this paper aims to provide a first overview of recent research – published and from completed and ongoing research projects. Findings are summarized and recommendations for developers are derived.
- KonferenzbeitragSelf-sovereign and Decentralized identity as the future of identity management?(Open Identity Summit 2020, 2020) Kubach, Michael; Schunck, Christian H.; Sellung, Rachelle; Roßnagel, HeikoBlockchain-based Self-sovereign and Decentralized identity approaches are seen by many as the future of identity management. These solutions are supposed to finally bring universally usable, trustworthy, secure, and privacy friendly digital identities for everyone and all use cases. This paper first presents the promises of this technological app
- TextdokumentA Semantic Data Model for the Development of Secure and Valuable Software(Open Identity Summit 2017, 2017) Horch, Andrea; Laufs, Uwe; Sellung, RachelleIT security is a crucial non-functional software requirement. Nevertheless, there are several other aspects that a softwares’ market success depends on. Therefore, it is vital that during the development process software developers consider different disciplines needs that essentially add value when going to market such as usability and socio-economics. The project CUES addresses these aspects by developing an interdisciplinary and integrated guidance tool, called the Wizard. The Wizard is designed to support software developers with interdisciplinary knowledge during the software development processes. The core of the Wizard builds a knowledge base, which is based on a semantic data model. While the semantic data model is finished, the Wizard is still undergoing development in the CUES project and is not yet complete. This paper presents the semantic data model as a first project result and as the core element of theWizard. The proposed data model stores knowledge about software development processes, methods and tools in order to derive problems and corresponding solutions which may occur in real software development processes.
- KonferenzbeitragService providers' requirements for eID solutions: Empirical evidence from the leisure sector(Open Identity Summit 2013, 2013) Kubach, Michael; Roßnagel, Heiko; Sellung, RachelleAlthough eID technology has undergone several development cycles and eID have been issued to citizens of various European countries, it is still not as broadly used as originally expected. One reason is the absence of compelling use cases besides eGovernment. Current Research focuses mainly on the needs of the user and technical aspects. The economic perspective is often disregarded. This is especially the case for the service providers that play a fundamental role in the adoption of the technology. The requirements of these stakeholders certainly have to be considered in the development of viable business models. So far, however, little empirical evidence on these requirements exists. We therefore performed a survey-based empirical analysis in two industries from the leisure sector to gain first insights into this topic. Results show that the service providers in our sample don't see a pressing need to change their currently used authentication method. However, they think that certain eID features could be valuable for their services. Our analysis of the hurdles showed that there is no ultimate reason that keeps service providers from implementing the eID technology.
- KonferenzbeitragTracking or being tracked: How much do self-trackers care about their data’s privacy?(Sicherheit 2024, 2024) Floris, Alice; Astfalk, Stefanie; Sellung, Rachelle; Roßnagel, HeikoThe advancement of tracking technology has given people new ways to understand and rediscover themselves. These technologies provide new and unique challenges to individual privacy, particularly when privacy breaches become less apparent, and users are not adequately aware of privacy regulations and risks. Nonetheless, research on privacy concerns with self-tracking data remains inconclusive and poorly understood. Moreover, the fundamental concept of data self determination — the cornerstone of information privacy — is under attack as users fail to take the necessary precautions to protect themselves. The current study used a quantitative method to examine the overall profile of self-trackers as well as their attitudes, preferences, concerns, and hurdles to (better) privacy protection. Self-trackers, according to the findings, seek control over both their bodies (i.e., self-optimization) and their data. Additionally, people just expect to have full control over their data and are disinterested in enforcing it or devoting effort to it. This suggests that, while privacy is still associated with control, users' actions and decisions make them more susceptible to loss of data control. We contend that these findings are consistent with the privacy paradox as well as the failure of privacy self-management, as defined by [So13].