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A Design Space for Effective Privacy Notices
Florian Schaub, Carnegie Mellon University; Rebecca Balebako, RAND Corporation; Adam L. Durity, Google; Lorrie Faith Cranor, Carnegie Mellon University
Notifying users about a system's data practices is supposed to enable users to make informed privacy decisions. Yet, current notice and choice mechanisms, such as privacy policies, are often ineffective because they are neither usable nor useful, and are therefore ignored by users. Constrained interfaces on mobile devices, wearables, and smart home devices connected in an Internet of Things exacerbate the issue. Much research has studied usability issues of privacy notices and many proposals for more usable privacy notices exist. Yet, there is little guidance for designers and developers on the design aspects that can impact the effectiveness of privacy notices. In this paper, we make multiple contributions to remedy this issue. We survey the existing literature on privacy notices and identify challenges, requirements, and best practices for privacy notice design. Further, we map out the design space for privacy notices by identifying relevant dimensions. This provides a taxonomy and consistent terminology of notice approaches to foster understanding and reasoning about notice options available in the context of specific systems. Our systemization of knowledge and the developed design space can help designers, developers, and researchers identify notice and choice requirements and develop a comprehensive notice concept for their system that addresses the needs of different audiences and considers the system's limitations and opportunities for providing notice.
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author = {Florian Schaub and Rebecca Balebako and Adam L. Durity and Lorrie Faith Cranor},
title = {A Design Space for Effective Privacy Notices},
booktitle = {Eleventh Symposium On Usable Privacy and Security (SOUPS 2015)},
year = {2015},
isbn = {978-1-931971-249},
address = {Ottawa},
pages = {1--17},
url = {https://www.usenix.org/conference/soups2015/proceedings/presentation/schaub},
publisher = {USENIX Association},
month = jul
}
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