Keywords:

Awareness Systems

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Computer-supported CooperativeWork; PresenceAwareness; Privacy; Security; Verification; Coordination; Privacy - ACM

Abstract:

Providing information about other users and their activities is a central function of many collaborative applications. The data that provide this "presence awareness" are usually automatically generated and highly dynamic. For example, services such as AOL Instant Messenger allow users to observe the status of one another and to initiate and participate in chat sessions. As such services become more powerful, privacy and security issues regarding access to sensitive user data become critical. Two key software engineering challenges arise in this context:  Policies regarding access to data in collaborative applications have subtle complexities, and must be easily modifi- able during a collaboration.  Users must be able to have a high degree of confidence that the implementations of these policies are correct. In this paper, we propose a framework that uses an automated verification approach to ensure that such systems conform to complex policies. Our approach takes advantage of VeriSoft, a recent tool for systematically testing implementations of concurrent systems, and is applicable to a wide variety of specification and development platforms for collaborative applications. We illustrate the key features of our framework by applying it to the development of a presence awareness system.

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Technical paper using COCA to implement the architecture and Verisoft to validate it

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Social Communication

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Groupware design and usability; workspace awareness; Social Communication - Informal Communication

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Privacy - Mynatt

Abstract:

Privacy is a known issue in ubiquitous computing, exasperated by an oft-cited feature of ubiquitous computing - invisibility. Dangers of invisible computing are interfaces that do not give people the needed tools of awareness and control to understand and shape the behavior of the system. By definition, ubiquitous computing systems are socio-technical, encompassing three environments: social, technical, and physical. We argue that addressing or presenting solutions in any one environment alone cannot solve the privacy issue in ubiquitous computing. Privacy is addressed best by giving users methods, mechanisms, and interfaces to understand and then shape the system in all three environments. We introduce Privacy Mirrors, a framework for designing socio-technical ubiquitous computing systems that will integrate into people's on-going needs, practices, values, and aesthetic sensibilities.

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TY - GEN RP - NOT IN FILE M1 - Everyday Computing Lab College of Computing and GVU Center

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Awareness Systems

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Awareness Systems

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Awareness Systems

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internet; multimedia applications; privacy trust; ubiquitous computing; grounded theory; Privacy - Anne Adams

Abstract:

Many users are not aware of the potential privacy implications of ubiquitous multimedia applications. Decision-makers are often reluctant to raise users’ awareness, since this may open a ‘can of worms’ and deter potential users. We conducted an opportunistic study after video-conferencing developers placed a camera in the common room of their university department, broadcasting the video on the Internet. The email debate following the common room users ‘discovery’ of the camera’s existence was analysed as well as 47 anonymous questionnaire responses. Three distinct types of responses were identified, varying with the media type (audio vs. video) transmitted and scope of distribution (local vs. global). The groups also differ in their perception of the common room situation (public vs. private) and the degree of control exerted by observers and those observed. We conclude that privacy implications of ubiquitous multimedia applications must be made explicit. Users who discover privacy implication retrospectively are likely to respond in an emotive manner, reject the technology, and lose trust in those responsible for it

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Social interactions: · Sense of place rather than physical characteristics of spaces · Presentation of the self within a perceived situation · User need social cues about type of situation in which they find themselves (private/public) and the types of appropriate behavior.

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CMC; domestic technologies; residential technologies; media spaces; audio spaces; shared whiteboards; awareness; ambient displays; internet appliances; design guidelines; aesthetics; consumers; homes; computer-human interaction; Social Communication

Abstract:

The Casablanca project explored how media space concepts could be incorporated into households and family life. Thiseffort included prototypes built for the researchers’ own home use, field studies of households, and consumer testingof design concepts. A number of previously unreported consumer preferences and concerns were uncovered and incorporated into several original prototypes, most notably ScanBoard and the Intentional Presence Lamp. Casablanca also resulted in conclusions about designing household social communication devices.

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