Report Review: Nielsen/Norman Group's Usability Return on Investment -- (Boxes and Arrows) "I hear some folks wonder, “But what about the 83 pages of case studies? There must be good stuff in there!” Sadly, this is not the case. The bulk of this report is simply not useful, because the cases are too wedded to particular contexts. The focus of each case study is the improvement made, which is utterly meaningless to the reader. " (Mac Comments: See Also NNGroup and Me: A Tale of Two Tickets.)