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Editable Graphical Histories. David Kurlander and Steve Feiner. Columbia University. 1990. Duration: 2:42.

Editable graphical histories are a technique for representing the history within a graphical application. They use a comic strip metaphor to depict the commands performed in the application as a sequence of panels. Several strategies make the history more compact and readily understood. Related commands are coalesced into individual panels. The panels show only the portion of the scene that is relevant to their graphical commands, plus a small amount of nearby scene context. Contextual objects are deemphasized by rendering them in a style that deemphasizes them. Editable graphical histories were implemented in the Chimera editor, and were a chapter in DJ Kurlander's thesis.

In this video of the first implementation of editable graphical histories, panels were rendered as pairs, depicting the scene before and after editing events. Later, the pair approach was dropped in favor of an individual row of panels, and the panels became fully editable.

This video was published in the SIGGRAPH video review. Here is a citation with a link to the extended abstract:

David Kurlander and Steven Feiner. Editable Graphical Histories: The Video. SIGGRAPH Video Review, issue 63. 1991. Extended abstract in CHI ‘91 Proceedings, pp. 451-452.