...word processing document that multiple people can simultaneously edit without having to pass it from one person to another.
That is so simple, and so obvious, but I had never heard it put that way before and I will remember that for future use.
Shah went on to point out that the document stays in the same place, revision managed. In the case of the Budget Formulation Wiki there is an elaborate permission hierarchy that makes visible only those parts of the document the user is allowed to see.
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