...This criteria report details Fitch Ratings methodology for analyzing structured finance collateralized debt obligations (SF CDOs) backed by portfolios of ABS, RMBS, CMBS and notes of CDOs. The methodology described in this report outlines the qualitative and quantitative factors considered in Fitchs analysis of SF CDOs. This report also addresses cash flow modeling assumptions for SF CDOs and supersedes and replaces the existing criteria report of the same title, published in September 2013. It is further supplemented by related Fitch criteria listed on page 2. No material changes have been made to the methodology. Finally, these criteria also apply to rating securities backed by a single tranche or a portfolio of tranches of existing SF CDOs, typically called repackaged or restructured securities. A general framework for analyzing these types of securities is detailed in Fitchs criteria report, "Rating Criteria for Repackaged Senior Structured Finance Notes," dated August 2013, available...