| 摘要 |
Personalized change-tracking functionality for collaboratively authored documents is provided. Initially, every document or page for a given user is marked as "new", "unread" or "unaccessed". Any time a user edits or even reads a portion of a document, that fact is captured and those segments of the document are marked, for only that user, as "read". However, any time another user edits that same document, if those edits overwrite areas that the first user has read or edited, or open up new areas, all those areas revert to the "new" or "unread" status. Thus, the next time the user visits that document or page, the display module will show him not what is new, but what is new to him.
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