Details about the mortgage processing flow

The visual representation of the mortgage processing flow in the AWS Management Console is as follows:

Steps in the flow

The following steps occur in the flow:

1. The customer's financial information from the input is sent to the loanCalculator Lambda function, which calculates the customer's maximum affordable loan.

2. The output from the loanCalculator function (maximumAffordableLoan) and the loanAmount value from the input are sent to the condition node, which is then evaluated as follows:

   • If the loanAmount is greater than the maximumAffordableLoan, the incomeDebt prompt is triggered and a rejection letter for the loan is generated.

   • Otherwise, the customer's financial information is sent to the mortgageProcessingAgent by the processApplication prompt. The agent applies a loan calculator function, as well as a Multiple Listing Service (MLS) lookup function to look up a DynamoDB table and assess the customer's information with respect to the MLS property specified in the input. Furthermore, the agent looks up information from a knowledge base, which contains the Fannie Mae Selling Guide. The agent uses all this information to generate a response analyzing the customer's eligibility for the requested loan amount.