Bidirectional links

The anchors in a node show the possible (outgoing) links that can be followed. Sometimes the user may want to know what alternative ways there were to get to the current node as well. Therefore the system should be able to show all incoming links, not just all outgoing links.

Intermedia and Storyspace are examples of systems in which the links are always bidirectional. Given the simple network below, it is not possible to view the nodes in the order A-B-D-E-C, while this would be possible with bidirectional links. The presentation of bidirectional links requires that both ends of a link can be an anchor, or that links not connected to a specific part of a node can be listed or graphically depicted in some way.