SimultaneousEditing
Simultaneous editing is part of Topsoil.
We want people to be able to edit a web page simultaneously. Two major problems with simultaneous editing are conflict resolution and content divergence. What we want is that users should be able to see other users editing the same document in real time. This can be accomplished using an architecture where clients poll the server for changes and incorporate those changes in the current document as they come in. Imagine two users editing a single document. The first user could be editing the first paragraph and the second user could be making changes to the second paragraph. Each user will see the other user's changes as they are being made. If both users happen to edit the same thing, a conflict resolution facility could be provided, using which the users could either come up with a collaborative edit or all users could back off allowing only one user to make the change.