The Experts below are selected from a list of 1098 Experts worldwide ranked by ideXlab platform

Keith W. Edwards - One of the best experts on this subject based on the ideXlab platform.

  • SESAME: Extending the Desktop Metaphor to Support Security Decision Making
    2013
    Co-Authors: Jennifer Stoll, Craig Tashman, Keith W. Edwards
    Abstract:

    We describe an interface design to help non-expert computer users make better informed decisions about their computer security. Our interface design, called Sesame, uses a direct manipulation extension of the ‘Desktop Metaphor ’ and four tightly coupled views to provide users with information pertinent to several types of security threats. We have performed a series of evaluative user studies, and discuss how our current design has been informed by these studies. 1

  • Sesame: Informing User Security Decisions with
    2013
    Co-Authors: System Visualization, Keith W. Edwards, Jennifer Stoll, Craig S Tashman, Kyle Spafford
    Abstract:

    Non-expert users face a dilemma when making security decisions. Their security often cannot be fully automated for them, yet they generally lack both the motivation and technical knowledge to make informed security decisions on their own. To help users with this dilemma, we present a novel security user interface called Sesame. Sesame uses a concrete, spatial extension of the Desktop Metaphor to provide users with the security-related, visualized systemlevel information they need to make more informed decisions. It also provides users with actionable controls to affect a system's security state. Sesame graphically facilitates users ' comprehension in making these decisions, and in doing so helps to lower the bar for motivating them to participate in the security of their system. In a controlled study, users with Sesame were found to make fewer errors than a control group which suggests that our novel security interface is a viable alternative approach to helping users with their dilemma

  • Giornata: Re-Envisioning the Desktop Metaphor to Support Activities in Knowledge Work
    2009
    Co-Authors: Stephen Voida, Elizabeth D. Mynatt, Keith W. Edwards
    Abstract:

    The Desktop Metaphor is beginning to show signs of strain in supporting modern knowledge work. Our research seeks to demonstrate how the traditional Desktop Metaphor can be re-envisioned, replacing a focus on documents and applications with user interaction based upon semantically meaningful activities. In this demonstration, we present Giornata, an application that augments the OS X Desktop with interface components that emphasize the role of activity in knowledge work. Giornata provides a number of innovative features not present in other systems, including activity-based resource storage, a mechanism for incrementally tagging activities, and integrated tools to foster collaboration within activities. ACM Classification: H5.2 [Information interfaces and presentation]: User Interfaces—Graphical user interfaces

  • Sesame: Informing User Security Decisions with
    2008
    Co-Authors: System Visualization, Keith W. Edwards, Jennifer Stoll, Craig S Tashman, Kyle Spafford
    Abstract:

    Non-expert users face a dilemma when making security decisions. Their security often cannot be fully automated for them, yet they generally lack both the motivation and technical knowledge to make informed security decisions on their own. To help users with this dilemma, we present a novel security user interface called Sesame. Sesame uses a concrete, spatial extension of the Desktop Metaphor to provide users with the security-related, visualized systemlevel information they need to make more informed decisions. It also provides users with actionable controls to affect a system's security state. Sesame graphically facilitates users ' comprehension in making these decisions, and in doing so helps to lower the bar for motivating them to participate in the security of their system. In a controlled study, users with Sesame were found to make fewer errors than a control group which suggests that our novel security interface is a viable alternative approach to helping users with their dilemma. Author Keywords: Security usability, security interface design, system visualizatio

  • Re-framing the Desktop Interface Around the Activities of Knowledge Work
    ACM, 2008
    Co-Authors: Stephen Voida, Elizabeth D. Mynatt, Keith W. Edwards
    Abstract:

    The venerable Desktop Metaphor is beginning to show signs of strain in supporting modern knowledge work. In this paper, we examine how the Desktop Metaphor can be reframed, shifting the focus away from a low-level (and increasingly obsolete) focus on documents and applications to an interface based upon the creation of and interaction with manually declared, semantically meaningful activities. We begin by unpacking some of the foundational assumptions of Desktop interface design, describe an activity-based model for organizing the Desktop interface based on theories of cognition and observations of realworld practice, and identify a series of high-level system requirements for interfaces that use activity as their primary organizing principle. Based on these requirements, we present the novel interface design of the Giornata system, a prototype activity-based Desktop interface, and share initial findings from a longitudinal deployment of the Giornata system in a real-world setting

Mary Czerwinski - One of the best experts on this subject based on the ideXlab platform.

  • To be published as a chapter in the book Designing Integrated Digital Work Environments: Beyond the Desktop Metaphor
    2008
    Co-Authors: Thomas P. Moran, Victor Kaptelinin, Shumin Zhai, Mary Czerwinski
    Abstract:

    The ubiquitous use of the Desktop Metaphor as the primary means of interacting with information is perhaps the earliest, and arguably the most profound, landmark of user interface design. Ironically, such a success is both a great past achievement and a difficult future challenge to overcome. Computing technologies and user experiences available to people in our current web-driven world are evolving rapidly. In fact, the strict concept of the Desktop Metaphor is already a “straw man ” notion, but it can help us characterize where we were and where we are going. We are already in mid-flight from the Desktop Metaphor to somewhere else. Although we cannot be sure where we are going, we can discern different dimensions in which things are changing. The research presented in the chapters of this book represents some notable efforts in moving beyond Desktop-Metaphor-based computing. In this concluding chapter we reflect and comment on seven dimensions of change along which we see future integrated digital work environments being different, as experienced by users, from today’s computing environment. Our analyses and speculations are based on the chapters in this book and our own research, as well as the HCI literature and information technology trends in general. In the spirit o

  • introduction the Desktop Metaphor and new uses of technology
    2007
    Co-Authors: Victor Kaptelinin, Mary Czerwinski
    Abstract:

    This chapter contains sections titled: The Trouble with the Desktop Metaphor, Toward Integrated Digital Work Environments, References

  • beyond the Desktop Metaphor designing integrated digital work environments
    Research Papers in Economics, 2007
    Co-Authors: Victor Kaptelinin, Mary Czerwinski
    Abstract:

    The computer's Metaphorical Desktop, with its onscreen windows and hierarchy of folders, is the only digital work environment most users and designers have ever known. Yet empirical studies show that the traditional Desktop design does not provide sufficient support for today's real-life tasks involving collaboration, multitasking, multiple roles, and diverse technologies. In Beyond the Desktop Metaphor, leading researchers and developers consider design approaches for a post-Desktop future.The contributors analyze the limitations of the Desktop environment--including the built-in conflict between access and display, the difficulties in managing several tasks simultaneously, and the need to coordinate the multiple technologies and information objects (laptops, PDAs, files, URLs, email) that most people use daily--and propose novel design solutions that work toward a more integrated digital work environment. They describe systems that facilitate access to information, including Lifestreams, Haystack, Task Factory, GroupBar, and Scalable Fabric, and they argue that the organization of work environments should reflect the social context of work. They consider the notion of activity as a conceptual tool for designing integrated systems, and point to the Kimura and Activity-Based Computing systems as examples.Beyond the Desktop Metaphor is the first systematic overview of state-of-the-art research on integrated digital work environments. It provides a glimpse of what the next generation of information technologies for everyday use may look like--and it should inspire design solutions for users' real-world needs.

  • beyond lifestreams the inevitable demise of the Desktop Metaphor
    2007
    Co-Authors: Victor Kaptelinin, Mary Czerwinski
    Abstract:

    This chapter contains sections titled: Motivations: Flashback to 1994, Beyond the Desktop Metapho, The Lifestreams Model, Analysis, Lifestreams Today, Acknowledgments, Notes, References

  • the task gallery a 3d window manager
    Human Factors in Computing Systems, 2000
    Co-Authors: George G Robertson, Mary Czerwinski, Maarten Van Dantzich, Daniel C Robbins, Ken Hinckley, Kirsten Risden, David Thiel, Vadim Gorokhovsky
    Abstract:

    The Task Gallery is a window manager that uses interactive 3D graphics to provide direct support for task management and document comparison, lacking from many systems implementing the Desktop Metaphor. User tasks appear as artwork hung on the walls of a virtual art gallery, with the selected task on a stage. Multiple documents can be selected and displayed side-by-side using 3D space to provide uniform and intuitive scaling. The Task Gallery hosts any Windows application, using a novel redirection mechanism that routes input and output between the 3D environment and unmodified 2D Windows applications. User studies suggest that the Task Gallery helps with task management, is enjoyable to use, and that the 3D Metaphor evokes spatial memory and cognition.

Kyle Spafford - One of the best experts on this subject based on the ideXlab platform.

  • Sesame: Informing User Security Decisions with
    2013
    Co-Authors: System Visualization, Keith W. Edwards, Jennifer Stoll, Craig S Tashman, Kyle Spafford
    Abstract:

    Non-expert users face a dilemma when making security decisions. Their security often cannot be fully automated for them, yet they generally lack both the motivation and technical knowledge to make informed security decisions on their own. To help users with this dilemma, we present a novel security user interface called Sesame. Sesame uses a concrete, spatial extension of the Desktop Metaphor to provide users with the security-related, visualized systemlevel information they need to make more informed decisions. It also provides users with actionable controls to affect a system's security state. Sesame graphically facilitates users ' comprehension in making these decisions, and in doing so helps to lower the bar for motivating them to participate in the security of their system. In a controlled study, users with Sesame were found to make fewer errors than a control group which suggests that our novel security interface is a viable alternative approach to helping users with their dilemma

  • Sesame: Informing User Security Decisions with
    2008
    Co-Authors: System Visualization, Keith W. Edwards, Jennifer Stoll, Craig S Tashman, Kyle Spafford
    Abstract:

    Non-expert users face a dilemma when making security decisions. Their security often cannot be fully automated for them, yet they generally lack both the motivation and technical knowledge to make informed security decisions on their own. To help users with this dilemma, we present a novel security user interface called Sesame. Sesame uses a concrete, spatial extension of the Desktop Metaphor to provide users with the security-related, visualized systemlevel information they need to make more informed decisions. It also provides users with actionable controls to affect a system's security state. Sesame graphically facilitates users ' comprehension in making these decisions, and in doing so helps to lower the bar for motivating them to participate in the security of their system. In a controlled study, users with Sesame were found to make fewer errors than a control group which suggests that our novel security interface is a viable alternative approach to helping users with their dilemma. Author Keywords: Security usability, security interface design, system visualizatio

Viswanath Venkatesh - One of the best experts on this subject based on the ideXlab platform.

  • Special Issue Journal of the Association for Information Hype or Help? A Longitudinal Field Study of Virtual World Use for Team Collaboration
    2013
    Co-Authors: Viswanath Venkatesh, Jaime B. Windeler
    Abstract:

    Despite increasing organizational interest and investment in virtual worlds (VWs), there is a lack of research on the benefits of VWs. When and how does the use of VW systems engender better organizational outcomes than traditional collaborative technologies? This paper investigates the value of VWs for team collaboration. Team collaboration is particularly relevant in studying VWs given the rich interactive nature of VWs and an increasing organizational reliance on virtual teamwork. To understand the value of VW use for team collaboration, we examine the relationship between a team’s disposition toward IT, their general disposition (personality) and VW use in influencing team cohesion and performance. We conducted a field study that compares two collaborative technology systems – one that is based on a traditional Desktop Metaphor and one that is grounded in the principles of a virtual world. We tracked the use of the systems for one year. We analyzed data at the team level and the results generally support our model, with agreeableness, conscientiousness, extraversion, openness, and computer self-efficacy interacting with time and technology type to positively influence team technology use. We also found that the use of the virtual world system positively influenced the relationship between technology use and team cohesion, which, in turn, predicts team performance. The model explains 57 percent, 21 percent, and 24 percent of the variance in team technology use, team cohesion, and team performance, respectively

  • telecommuting technology implementations a within and between subjects longitudinal field study
    Personnel Psychology, 2002
    Co-Authors: Viswanath Venkatesh, Philip R Johnson
    Abstract:

    This research examines the impact of technology design on the acceptance and long-term use of telecommuting systems. Specifically, we compare employee acceptance and sustained use of a traditional system designed based on the common “Desktop Metaphor,” with a virtual-reality system designed to enhance social richness and telepresence. This 1-year study incorporated a within- and between-subjects examination of 527 employees across 3 locations of a large organization. Results showed much higher telecommuter acceptance and use of the virtual-reality system. Strong support emerged for the hypotheses that higher social richness and higher telepresence leads to higher telecommuter motivation and higher sustained use of the system.

Jennifer Stoll - One of the best experts on this subject based on the ideXlab platform.

  • SESAME: Extending the Desktop Metaphor to Support Security Decision Making
    2013
    Co-Authors: Jennifer Stoll, Craig Tashman, Keith W. Edwards
    Abstract:

    We describe an interface design to help non-expert computer users make better informed decisions about their computer security. Our interface design, called Sesame, uses a direct manipulation extension of the ‘Desktop Metaphor ’ and four tightly coupled views to provide users with information pertinent to several types of security threats. We have performed a series of evaluative user studies, and discuss how our current design has been informed by these studies. 1

  • Sesame: Informing User Security Decisions with
    2013
    Co-Authors: System Visualization, Keith W. Edwards, Jennifer Stoll, Craig S Tashman, Kyle Spafford
    Abstract:

    Non-expert users face a dilemma when making security decisions. Their security often cannot be fully automated for them, yet they generally lack both the motivation and technical knowledge to make informed security decisions on their own. To help users with this dilemma, we present a novel security user interface called Sesame. Sesame uses a concrete, spatial extension of the Desktop Metaphor to provide users with the security-related, visualized systemlevel information they need to make more informed decisions. It also provides users with actionable controls to affect a system's security state. Sesame graphically facilitates users ' comprehension in making these decisions, and in doing so helps to lower the bar for motivating them to participate in the security of their system. In a controlled study, users with Sesame were found to make fewer errors than a control group which suggests that our novel security interface is a viable alternative approach to helping users with their dilemma

  • Sesame: Informing User Security Decisions with
    2008
    Co-Authors: System Visualization, Keith W. Edwards, Jennifer Stoll, Craig S Tashman, Kyle Spafford
    Abstract:

    Non-expert users face a dilemma when making security decisions. Their security often cannot be fully automated for them, yet they generally lack both the motivation and technical knowledge to make informed security decisions on their own. To help users with this dilemma, we present a novel security user interface called Sesame. Sesame uses a concrete, spatial extension of the Desktop Metaphor to provide users with the security-related, visualized systemlevel information they need to make more informed decisions. It also provides users with actionable controls to affect a system's security state. Sesame graphically facilitates users ' comprehension in making these decisions, and in doing so helps to lower the bar for motivating them to participate in the security of their system. In a controlled study, users with Sesame were found to make fewer errors than a control group which suggests that our novel security interface is a viable alternative approach to helping users with their dilemma. Author Keywords: Security usability, security interface design, system visualizatio