Collaborative editing

Collaborative editing is the practice of groups producing works together through individual contributions. Most usually it is applied to textual documents or programmatic source code. Such asynchronous (non-simultaneous) contributions are very efficient in time, as group members need not assemble in order to work together. Generally, managing such work requires software; the most common tools for editing documents are Wikis, and those for programming, version control systems. Most word processors are also capable of recording changes; this allows many editors to work on the same document while automatically clearly labeling who contributed what changes.
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