Custom DY — A Web Based Business User Driven Automated Underwriting System

Srinivas Krovvidy, Robin Landsman, Steve Opdahl, Nancy Templeton, Sydnor Smalera

Custom DY is an automated underwriting system that enables mortgage lenders to build their own business rules that facilitate assessing borrower eligibility for different mortgage products. Developed by Fannie Mae, Custom DU has been used since 2004 by several lenders to automate the underwriting of numerous mortgage products. Custom DU uses rule specification language techniques and a web-based, user-friendly interface for implementing business rules that represent business policy. Via the user interface, lenders can also customize their underwriting findings reports, test the rules that they have defined and publish changes to business rules on a real-time basis, all without any software modifications. The user interface enforces structure and consistency, enabling business users to focus on their underwriting guidelines when converting their business policy to rules. Once a lender has created their rules, loans are routed to the appropriate rulesets and customized, but consistent results are always returned to the lender. Using Custom DU, lenders can create different rulesets for their products and assign them to different channels of the business, allowing for centralized control of underwriting policies and procedures — even if lenders have decentralized operations.

Subjects: 1.7 Expert Systems; 10. Knowledge Acquisition

Submitted: Apr 3, 2007


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