VISUALIZING DOCUMENT REVISIONS

摘要

A facility for servicing a request for a document is described. The facility receives the request, which identifies the document and specifies a time for which the document is to be constituted. In response to receiving the request, the facility accesses information representing a number of editing actions performed on the identified document. The accessed information indicates, for each of the represented editing actions, a time at which the editing action was performed on the identified document. The facility responds to the request with a version of the identified document that reflects all of the represented editing actions whose indicated time is before the specified time, and that reflects none of the represented editing actions whose indicated time is after the specified time.

主权项

1. A computing system for rendering a selected document that has changed over time, comprising:
a display subsystem configured to display concurrently (a) a timeline representing a period of time, (b) a first slider that is movable in response to user input to positions relative to the timeline each corresponding to a time during the first period of time, and (c) a document contents window; a document materialization subsystem configured to, for each position to which the first slider is moved, materialize at least a portion of the selected document as it existed at the time to which the position to which the first slider is moved corresponds; and a window population subsystem configured to, in response to each movement of the first slider to a position, populate the document contents window displayed by the display subsystem with the at least a portion of the selected document materialized by the document materialization subsystem for the position.