On the other hand, studies also show that "radical collocation" can increase software development productivity. This study from the University of Michigan claims that productivity was doubled when developers worked together in specially designed "war rooms" that allowed for both spontaneous meetings and moments of solitude: http://www.researchgate.net/publication/220879336_How_does_r... This quote summarizes the resu…
My own opinion is that it should be the other way around. In the open space, library rules apply: brief whispered conversations only. For extended discussions, go into a "focus room".
That, I think, could work.