"The enhancements, greater precision and transparency provided by the new Moody's Mortgage Metrics model will serve as important considerations in our ratings process. However, given the judgment provided by experienced analysts in arriving at opinions of credit risk, it is important to recognize that there may be differences between model outputs and our ultimate rating decisions," said Claire Robinson, senior managing director for the asset finance group at Moody's Investors Service. As part of its ongoing development of mortgage tools and models, the rating agency is expanding the functionality of Moody's Mortgage Metrics as a surveillance tool. Moody's will also integrate Moody's Mortgage Metrics with Structured Finance Workstation (SFW), which is the cash flow engine offered by Moody's Wall Street Analytics.