The article was written collectively by many Wikipedians.
This Knicks' season is an improvised script in progress, collectively written by journalists, who have taken turns fashioning characters and developing story lines.
It included the first collectively written track, "Sisters".
( this response was collectively written but does not necessarily reflect a consensus view).
'This piece was collectively written but does not necessarily reflect a consensus view'
All songs were written collectively by the band.
A chain novel or chain story is written collectively by a group of authors.
These collectively written theater pieces were performed in workshops as well as public performances.
Perhaps because it was written collectively, the piece doesn't have points of view so much as points of contemplation, which is a bit frustrating.
The first publicly hosted event was the comic play Gl'ingannati, written collectively by the Intronatis.