Respuesta :
A wiki is probably the best of the choices presented, because it's editable by everyone. But wikis get out of control pretty quickly if nobody is assigned to be the wiki-keeper.
Forum software can actually be the best approach, because forums can be divided into different topics for different projects, and posts in chronological order (with attachments) help everybody keep track of what happened when.
Forum software can actually be the best approach, because forums can be divided into different topics for different projects, and posts in chronological order (with attachments) help everybody keep track of what happened when.