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Plasma Poster
touchscreen GUI redesign
Churchill, Nelson, Denoue, Helfman, and Murphy, 2003 | |
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Plasma Posters are poster-sized touchscreens in public places for
informal content sharing within teams, organizations, and communities.
Email is used to post content to the poster network, while a website
is used to edit postings and browse the posting archives.
Without user input, posters cycle through the posted content, offering
different levels of interaction from viewing at a distance, to
reading, to interactive browsing. Touching the screen pauses the
presentation sequence.
Dragging your fingers on the content scrolls it - no scrollbars are
necessary.
Usage data and user interview/survey results were used to redesign the user-interfaces and implement new features that improved and stabilized the system. Jonathan Helfman led the redesign effort to simplify both the look and feel and the implementation. Recasting the GUI as a single Web page and style sheet allowed for simpler maintenance and more convenient customization. Helfman also extended the interface with an interactive strip of thumbnails of posted content. The thumbnail strip shows items that have recently been on view (to the left of center), the current item (in the center), and items that are about to come on view (to the right of center). Readers may select any thumbnail to display the associated posting. The thumbnail strip is also scrollable: a reader may select anywhere on the strip and flick their finger left or right to reveal other items in the presentation sequence. |