Byung-Gon Chun Sylvia Ratnasamy Eddie Kohler NetComplex: A Complexity Metric for Networked System Designs. 393-406 2008 NSDI http://www.usenix.org/events/nsdi08/tech/full_papers/chun/chun.pdf conf/nsdi/2008 db/conf/nsdi/nsdi2008.html#ChunRK08