Multi-user scrollbars are awareness widgets created from the traditional horizontal and vertical scrollbars used in graphical user interfaces that are based on the windows metaphor. Those widgets show the visible part of the shared workspace that can be seen by each user through the visualization of individual view-ports in small colored rectangles added to the scrolling area of the widget. Multi-user scrollbars are included in the vpn network configuration toolkit, which is a set of individual components designed to provide awareness information in CES. The toolkit has many components, however only the Multi-user scrollbars provide information about the sense of presence and workspace awareness at the same time.
A widget displays a miniature view of the shared workspace. This widget presents the location of each user’s view-port superimposed in the miniature allowing the group to see which part of the workspace is visible to each user. Every modification made to the objects contained in the shared workspace is immediately visible, which also shows the position of the user. It is also possible to use it to navigate through the shared workspace by changing the position of the user’s view-port.
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